41results about How to "Won't disconnect" patented technology

The invention belongs to the technical field of 3G mobile phones, in particular to a test method for mobile phone antenna radiation performances, which comprises firstly testing the total radiation power of a mobile phone, calculating the gain of a mobile phone antenna according to the total radiation power, setting the gain value of the mobile phone antenna as the loss value of up link and down link of a terminal all-purpose tester, setting a reference power value as a critical reference power value of the omnidirectional sensitivity measurement, wherein the set reference power value will be extremely close to the critical reference power value therefore, thereby guaranteeing the chain path in the test process connecting. The test method can be used to find the reference power value meeting the requirement only by testing twice, simultaneously, and can test the total radiation power of the mobile phone antenna, thereby increasing the test efficiency and the test stability.

The invention provides a mask plate, a fabrication method thereof and an exposure system. The mask plate comprises a first region and a second region, wherein a plurality of patterning masks are arranged in both of the first region and the second region, and the distribution density of the plurality of patterning masks in the first region is smaller than the distribution density of the plurality of patterning masks in the second region; and each patterning mask comprises a first pattern, a second pattern and a slit between the two patterns, and the slit width in the first region is greater than the slit width in the second region. By the mask plate, the intensity of the exposure light ray penetrating through the slit in the second region is reduced relative to the intensity of the exposure light ray penetrating through the slit in the first region, thus, the thickness of a photoresist reserved on an active region film layer tends to consistency after transistors in a display region and a non-display region are exposed and developed through a source and a drain, an active region of the transistor in the non-display region after being subjected to an etching process is further ensured not to be broken, and finally, the transistor in the non-display region can be ensured to normally work.

The invention discloses a flexible wearable type thermoelectric power generation apparatus. The flexible wearable type thermoelectric power generation apparatus comprises an upper substrate, a lower substrate, copper foils, an upper textile layer, a lower textile layer, a thermal isolation layer, P type semiconductor particles, N type semiconductor particles, and wires, wherein the thermoelectric power generation apparatus comprises the upper substrate, the upper textile layer, the thermal isolation layer, the lower textile layer, and the lower substrate top to bottom in sequence; even number pairs of the P type semiconductor particles and N type semiconductor particles pass through the upper textile layer, the thermal isolation layer and the lower textile layer to be correspondingly welded on the copper foils which are arranged on the upper substrate and the lower substrate and are fixed at equal spacings; the semiconductor particles are connected by the wires which are connected between the upper layer copper foils to form semiconductor modules; correspondingly, the semiconductor modules are connected by the wires which are connected between the lower layer copper foils; and the first piece of the copper foil which is connected with the N type semiconductor particles, and the last piece of the copper foil which is connected with the P type semiconductor particles are led out through the wires. The flexible wearable type thermoelectric power generation apparatus can be combined with clothes, and can utilize heat, which is generated by a human body naturally, in a stable, reliable and high-conversion-efficiency manner to generate electricity and to supply the electricity to a low-power-consumption wireless sensor.

A locking arrangement for panels includes a first panel, a locking tab extending from the first panel, a second panel having a main portion (6), and a leading portion (7) connected thereto along a plurality of collinear panel fold lines, and a pair of locking slits defined in the second panel. Each locking slit extends at least from a first point disposed astride one of the panel (60) fold lines, into the leading portion and to a second point disposed on the main portion, and the locking slits defining therebetween a strut panel. The locking tab is received into the slits, and is held between the strut panel and the second panel. A strut fold line (62) may be disposed across the strut panel from the locking slit to the cut edge (58) substantially in parallel to the panel fold line, the strut fold line being disposed in an offset relationship to the panel fold line in a direction toward the leading portion, whereby folding of the leading portion at least partially opens the locking slit for receiving the locking tab thereinto.

The invention discloses a novel slice type semiconductor ultra-thin packaging device comprising a fixed base. A conveying assembly line extending left and right is arranged in the middle of the upperend surface of the fixed base. Sealing space is formed in the left side inside a fixed case; a hydraulic rod is fixedly connected to the central position of the lower end surface of a sealing plate; the lower end of the hydraulic rod passes through the lower end wall of the sealing space and is fixedly connected with a press-fit plate; a resin conveying device is arranged right below the press-fitplate and includes a winding mechanism and a pulling mechanism. When the packaging device is working, an extruding plate moves up and down along a guiding rod without falling based on cooperation ofan annular clamp plate and an annular clamp slot; the extruding plate can fall to be in contact with the lower end wall of glue storage space to prevent plugging of a glue coating needle due to solidification of lower-end glue liquid not in use for long time; and the resin sheet that is not used can be switched automatically, so that precision is improved and the work efficiency is enhanced.

The invention relates to the technical field of dies, and particularly relates to a hexagonal terminal forming die, which comprises a die bottom plate. The die bottom plate is provided with a die fixing seat; an inner die seat is movably arranged in the die fixing seat; an outer die seat is fixedly arranged on the die fixing seat; a first groove and a second groove are arranged on the inner die seat; the first groove and the second groove are internally provided with a first elastic piece and a second elastic piece respectively; the first elastic piece is connected with a first crimping sliding block; the second elastic piece is connected with a second crimping sliding block; the outer die seat is provided with a third groove and a fourth groove; the third groove and the fourth groove are internally provided with a third elastic piece and a fourth elastic piece respectively; the third elastic piece is connected with a third crimping sliding block; and the fourth elastic piece is connected with a fourth crimping sliding block. The terminal is placed in the die, the terminal can be automatically crimped into a standard regular hexagon, a wire harness can be compactly crimped and is not likely to get loose, the wire is not broken, sparks are not generated in the power-on case, strong current can be borne, the manufactured wire harness terminal has high precision, the appearance is good, and requirements of a client can be totally met.

The invention discloses a computer case with an internal dust removal function, and relates to the technical field of computers. The computer case comprises two side plates, two dust suction plates and a plurality of elastic dust suction pipes; an air suction cavity is formed in one side of each dust suction plate, a connecting plate is fixedly installed in each air suction cavity, a plurality ofthrough grooves are formed in one side of each connecting plate, and a plurality of branch pipes and a main air pipe are embedded in each connecting plate; and a second dust suction hole is formed inone end of each elastic dust suction pipe, a plurality of first dust suction holes are formed in the circumferential side face of each elastic dust suction pipe, and the other end of each elastic dustsuction pipe fixedly communicates with a hollow cylinder. According to the computer case, through arranging the dust suction plates, the connecting plates and the elastic dust suction pipes, the elastic dust suction pipes extend and make contact with a computer mainboard on a mainboard mounting plate under the action of an air blower, dust in the computer case enters an air draft cavity through the first dust suction holes and the second dust suction holes, and dust in the air draft cavity enters a dust collection chamber through a dust collection pipe.

The invention provides a constant tension mechanism of an expressage bag making machine. The constant tension mechanism is arranged in a former process of a first paper cutting mechanism of the bag making machine and comprises swing arms, swing rollers, angular displacement sensors, air cylinder devices and joint bearings; and the two swing arms are oppositely arranged in a rack, the swing roller is connected to the lower portion of the part between the two swing arms, one end of each angular displacement sensor and one end of each air cylinder device are connected to the middle portions of the swing arms, one ends of the air cylinder devices are connected with the swing arms through the joint bearings, and the other ends of the air cylinder devices and the other ends of the angular displacement sensors are fixed to the rack. By means of the constant tension mechanism of the expressage bag making machine, it can be guaranteed that paper cannot be broken in the running process; the angular displacement sensors are used for detecting the angle of the swing roller, paper breakage can be caused if the angle is too large or too small, and the needed angle is achieved by adjusting the position of the swing roller through air cylinders.

The invention provides a charging point for a battery electric ship. The charging point comprises a charging point body. The charging point body is equipped with heat dissipation nets and an alternating current interface. The front surface wall of the charging point body is equipped with an ARM controller. The front surface wall of the ARM controller is equipped with a touch display screen and control buttons. A billing electric meter, a circuit board, a decoding board and a heat removal fan are disposed inside the ARM controller. A loudspeaker is disposed at the top of the ARM controller. The upper left side of the ARM controller is equipped with a USB joint. A solar inverter and a battery pack are disposed under the ARM controller. The charging point body is provided with a switched line. The switched line is equipped with a charging port. A conductor is arranged inside the charging port. The ARM controller can provide an accurate billing way, and heat inside a charging cabinet can be effectively dispersed through the heat removal fan. Therefore, the service life of the charging point is prolonged.

The invention discloses a flexible wearable thermoelectric power generation device, which comprises: an upper substrate, a lower substrate, copper foil, an upper textile layer, a lower textile layer, a heat insulation layer, P-type and N-type semiconductor particles, and wires; the thermoelectric power generation device consists of From top to bottom are the upper substrate, the upper textile layer, the heat insulation layer, the lower textile layer, and the lower substrate. The even-numbered pairs of P-type and N-type semiconductor particles pass through the upper textile layer, the heat insulation layer, and the lower textile layer. On the copper foil fixed at equal intervals on the lower substrate, the semiconductor particles are connected by wires connected between the upper copper foils to form a semiconductor module. Correspondingly, the semiconductor modules are connected by wires connected between the lower copper foils. For connection, the first piece of copper foil welded with N-type semiconductor particles and the last piece of copper foil welded with P-type semiconductor particles are drawn out with wires. The device can use the heat naturally emitted by the human body to generate electricity for the wireless sensor with low power consumption in combination with stable and reliable clothing and high conversion efficiency.

The invention provides a device for detecting the air tightness of intravenous drip buckets in a batch manner. The device comprises a base and a detecting group, wherein the detecting group is arranged on the base; a control box which is electrically connected with the detecting group is arranged beside the detecting group; the detecting group comprises multiple same detecting tools which are arrayed in parallel; the detecting tools comprise brackets and multiple fixing blocks which are arranged on the brackets; the fixing blocks jointly act through a first sliding mechanism and a second sliding mechanism; multiple hollow locating columns which are uniformly distributed and cooperate with the fixing blocks are fixedly arranged on the base. According to the device for detecting the air tightness of the intravenous drip buckets in the batch manner, which is provided by the invention, through realizing the detection of the air tightness of multiple intravenous drip buckets once and further displaying pressure differences respectively, the detection of the flow characteristics of large-batch intravenous drip buckets is realized; the detection efficiency is obviously improved; the device meets the use demand of a present larger intravenous drip bucket; the time is saved; further, the detection cost is obviously decreased.

The invention discloses a chip-type semiconductor ultrathin packaging device, and the device comprises a fixed substrate. The center of the upper end face of the fixed substrate is provided with a conveying assembly line which extends in a left-right direction. The left side of the interior of a fixed cabinet is provided with a closed space, and the center of the lower end face of the sealing plate is fixedly connected with a hydraulic rod. The lower end of the hydraulic rod passes through the lower end wall of the closed space and is fixedly connected with a pressing-fit board. A resin sheetconveying device is disposed exactly below the pressing-fit board, and comprises a winding mechanism and a pulling mechanism. In operation, the cooperation of an annular clamping board and an annularclamping groove can enable an extruding plate not to fall off when the extruding plate move up and down along a guide rod, and the extruding board can fall to make contact with the lower end wall of aglue storing space, thereby preventing the solidification of glue at lower end from causing the blocking of a glue coating needle after the glue is not used for a long time period. Meanwhile, resin sheets which are not used can be automatically switched, thereby improving the precision, and improving the work efficiency.

The invention provides a dual-engine hot standby method, which comprises the following steps: 1) a main engine initiates a first SCTP connection to an opposite end, and an active link and a standby link are arranged in the first SCTP connection, wherein the standby IP is set as the local standby IP of the main engine; 2 ) the main engine transmits relevant information of the first SCTP connectionto a standby engine in real time; 3 ) the standby engine establishes a second SCTP connection locally according to the relevant information of the first SCTP connection, and the active link and the standby link are arranged in the second SCTP connection, wherein the IP of the main engine is set as a local main IP of the standby engine end, and the actual IP of the standby engine is set as the local standby IP; moreover, the two SCTP connections use the same SCTP connection identifier, and the standby link in the second SCTP connection is kept alive by the standby engine through a SCTP HEARTBEAT message. The invention further provides a corresponding dual-engine hot standby system. According to the method and the system, a user service can be ensured to carry out uninterruptedly and is easyto popularize.

The invention relates to the technical field of communication products, and discloses a portable environment-friendly automatic communication cable stripping device which comprises a main shaft, a rotating wheel is rotatably connected to the exterior of the main shaft, a sleeve is fixedly installed in the rotating wheel, a solenoid is arranged in the sleeve, an iron block is arranged under the solenoid, a cutter is fixedly connected to the lower portion of the iron block, limiting blocks are fixedly installed in the left side and the right side of the cutter, and first springs are fixedly connected to the lower portions of the limiting blocks. When the device is used for cutting, if the cutter is in contact with an internal wire of a cable, a solenoid external coil is powered on, the cutter is forcibly pulled back into the sleeve, after the cutter is separated from the cable wire, current disappears, and the cutter pops out of the sleeve under the elastic force of the first spring to continuously cut the skin; by means of the structure, a protection device is triggered to forcibly pull back the cutter when the cutter makes contact with the cable wire, so that the cutter is prevented from cutting off the wire, and the wire in a cut cable product cannot be broken.

A method of hair restoration, comprising coating the surface of each of the hairs in an area of hair diameter increase desired with a hair restoring agent, carrying out fixation and stabilization to thereby form a hair restoration covering, applying a water-resistant covering coating agent to the surface of each of the hairs having been furnished with the hair restoration covering, and carrying out fixation and stabilization to thereby form a coat film, characterized in that the hairs are finished into tubular or sheath form.

The invention relates to the technical field of dies, and particularly relates to a hexagonal terminal forming die, which comprises a die bottom plate. The die bottom plate is provided with a die fixing seat; an inner die seat is movably arranged in the die fixing seat; an outer die seat is fixedly arranged on the die fixing seat; a first groove and a second groove are arranged on the inner die seat; the first groove and the second groove are internally provided with a first elastic piece and a second elastic piece respectively; the first elastic piece is connected with a first crimping sliding block; the second elastic piece is connected with a second crimping sliding block; the outer die seat is provided with a third groove and a fourth groove; the third groove and the fourth groove are internally provided with a third elastic piece and a fourth elastic piece respectively; the third elastic piece is connected with a third crimping sliding block; and the fourth elastic piece is connected with a fourth crimping sliding block. The terminal is placed in the die, the terminal can be automatically crimped into a standard regular hexagon, a wire harness can be compactly crimped and is not likely to get loose, the wire is not broken, sparks are not generated in the power-on case, strong current can be borne, the manufactured wire harness terminal has high precision, the appearance is good, and requirements of a client can be totally met.

The embodiment of the invention provides a device switching method, a device switching device and a data transmission system. The method comprises the steps of: obtaining first transmission stabilityinformation among a data transmitter and multiple data receivers in the on state respectively and second transmission stability information among the data transmitter and data receivers in the off state; and, in the multiple data receivers in the on state, if the first transmission stability information corresponding to any data receiver satisfies a switching condition, controlling any data receiver to be switched to the off state, controlling the target data receiver determined according to the second transmission stability information to be switched to the on state, and controlling the remaining data receivers in the on state to be kept same. In the time period from turnoff of any data receiver to turn-on of the target data receiver, the remaining data receivers for normally receiving data transmission signals exist; the fact that a data transmission link is always connected can be ensured; and data loss due to disconnection of the transmission link is avoided.

The invention discloses a large-diameter wide-fin spiral drill rod. The large-diameter wide-fin spiral drill rod comprises a drill bit, a connecting block and blades, wherein a clamping block is fixedly mounted on the outer wall of the drill bit; the outer wall of the clamping block is movably connected with a clamping groove; the outer wall of the clamping groove is fixedly connected with a firstdrill rod; and a threaded groove is formed in the surface of the first drill rod. According to the large-diameter wide-fin spiral drill rod, a bolt penetrates through the threaded groove and is in butt joint with a mounting hole in the drill bit, thus, after being scrapped, the drill bit can be separately disassembled, and unnecessary waste is reduced; the connecting block is mounted in a chute from an opening end of the chute, thus, the first drill rod is fixedly connected with a second drill rod, after the large-diameter wide-fin spiral drill rod is used, the first drill rod and the seconddrill rod can be disassembled, a fixing plate is mounted in the chute, then, a fixing bolt penetrates through a mounting hole in the fixing plate and is connected with a mounting hole in the chute, the fixing plate is firmly mounted in the chute, the opening end of the chute is closed, and the connecting block cannot be separated from the chute.

The invention provides a drip barrel membrane airtightness detection apparatus, comprising a base and at least detection group arranged thereon; each detection group comprises a control cabinet and a test tool arranged on one side and electrically connected thereto. The airtightness of double membrane is detected through the drip barrel membrane airtightness detection apparatus, the detection is semi-automated, breathing resistance of the membrane is detected so that the breathability of the membrane can be in a fixed numeric range, the membrane admits water and quantitatively admits air, the flow characteristics of the drip barrel double membrane is quickly and effectively detected, the detection effect is good, and the practicality is high.

The embodiment of the invention discloses an electrical connection structure, which is used to realize the electrical connection between the working part fixed on the free end of the lifting rod and the power supply provided at the fixed end of the lifting rod opposite to the free end. The electrical connection structure includes a supporting member, a tap, an elastically stretchable slingshot connection wire and a tap wire. The supporting member is arranged on the free end of the lifting rod together with the working part. The tap is seated on the support member. The tap includes a power terminal connected to the power supply and an electrical interface for external output. Both ends of the slingshot connecting wire are respectively connected to the power supply terminal and the power supply. The branch line is connected to the electrical interface and the working part. When the lifting rod is telescopic, the tap on the supporting part moves together with the working part, and the distance between the working part and the electrical interface of the tap remains unchanged, so the tap wire does not move during the telescopic process of the lifting rod. Will be broken by pulling. In addition, the present invention also provides an electronic device with the electrical connection structure.

This invention proposes a manufacturing process for a transponder in the form of a card or a label able to resist to flexions or twisting without interrupting the connections of the electronic components. The process of assembling at least one electronic component including sensibly flat conductive areas that are connected to conductive tracks placed on the surface of a generally flat substrate comprises the steps of placing the substrate on a work surface, the face including conductive tracks being oriented upwards, placing the electronic component into a cavity of the substrate situated in a zone including the conductive tracks, the conductive areas of the component coming into contact with the corresponding tracks of the substrate and applying a layer of insulating material which extends at once on the electronic component and at least on a substrate zone surrounding said component. This process implies that the contact between the conductive areas of the electronic component and the conductive tracks of the substrate realizes an electric connection ensured by the pressure of application of the insulating material layer on the electronic component.

The invention discloses a limb stretching device for surgical treatment. The limb stretching device comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with the lowersurface of a supporting plate, and a sliding groove is formed in the right side face of the supporting plate. A sliding block is arranged in the sliding groove, and the lower surface of the sliding block is fixedly connected with the top end of a telescopic device. The bottom end of the telescopic device is fixedly connected with the upper surface of the bottom plate. According to the limb stretching device for surgical treatment, through arrangement of a belt, a hook-and-loop fastener, a rope, a coil, a clamping block, a second fixed pulley, a triangular block, an electric push rod and a handle, when a limb of a patient needs to be lifted to be bound, a doctor penetrates one end of the belt through the limb of the patient firstly, then the hook surface and the rough surface are bonded together, thus the doctor can bind the limb of the patient, the doctor does not need to manually lift the limb of the patient to conduct binding, physical power of the doctor is not dissipated accordingly, binding treatment is not influenced, and secondary damage to the limb of the patient is avoided.

The invention discloses dairy product processing equipment which comprises a rack base. A conveying line extending in the left-right direction is arranged at the middle section of the upper end face of the rack base, a sealed cavity is formed in the left side of a filling machine, and a pressure rod is fixedly connected to the center of the lower end surface of a clamping plate. The lower end of the pressure rod penetrates through the lower end wall of the sealed cavity and is fixedly connected with a pressure plate, and an aluminum foil conveying device is arranged right below the pressing plate, wherein the aluminum foil conveying device comprises a winding device and a pulling device. During working, the filling machine can enable a bottle opening to abut against a rubber pad of the filling machine through the lifting of a bottle needing to be filled, a sliding sleeve is promoted to move vertically upwards, and then a filling head is opened to enable liquid in a liquid storage tankto enter the bottle for filling so that the operation can be efficiently and automatically completed, and the labor cost is saved. Meanwhile, unused aluminum foil can be automatically switched, the accuracy is improved, and the working efficiency is improved.

The invention discloses a coating process of water-based colorful paint on the surface of furniture, which comprises the following steps: 1) plate pretreatment: use 24# sandpaper to roughly grind the plate until the plate is flat, and then use a damp cloth to wipe the plate; use 180# sandpaper to finely Grind the board in the wood grain direction, remove burrs, and then remove dust; 2) Paint the board: use paint roller coating equipment to spray primer on the board, and the thickness of the primer is 0.5‑0.7mm. The invention improves the drying speed of the topcoat, thereby improving the production efficiency, and the topcoat is condensed together, no cracks will not be broken, and it is not easy to fall off. The topcoat has high stability, good durability, and improved gloss, so The furniture is more beautiful; and the bonding effect between the top coat and the primer is good, the top coat at the bottom is completely bonded to the primer, the connection between the two is stable, and it is not easy to separate and delaminate.

The invention discloses a loudspeaker device and a method for manufacturing the same, and relates to the technical field of electroacoustic products. The loudspeaker device comprises a first shell, a second shell and a connecting assembly; the first shell and the second shell are combined, a vibrating system and a magnetic circuit system are accommodated in a cavity encircled by the first shell and the second shell; the connecting assembly is used for electrically connecting the vibrating system with an external circuit and comprises a conducting strip and springs, the conducting strip is integrated with the second shell by means of injection molding, the springs are made of conducting materials, and through holes for accommodating the springs are arranged on the first shell; and the springs are conical, and the through holes are matched with the springs. The loudspeaker device and the method for manufacturing the same solve problems of troublesome manufacturing procedure, long production cycle, high cost and low stability of a loudspeaker device in the prior art. The loudspeaker device and the method have the advantages that a manufacturing procedure is simplified, the production cycle is shortened, production cost is lowered, work reliability and stability are improved, and the service life of the loudspeaker device is prolonged.

The invention relates to a RFID (Radio Frequency Identification Devices) tag with UHF (Ultra High Frequency) bandwidth special for washing and still durable in use at an extreme severe using environment and a designing and manufacturing method thereof. The antenna emitting part and a power supply part of the RFID tag are designed into a separated type; the power supply part is made of hard materials which are difficult to deform so as to ensure that an RFID IC (Integrate Circuit) chip and the power supply part are safe from damage under external environmental stress; the antenna emitting part and the power supply part are hermetically connected through thermal compression welding in the packaging process; and the power supply part is in direct circuit connection with the antenna emitting part through a conductive through hole, or the power supply part is indirectly connected with the antenna emitting part in an electromagnetic coupling way. The RFID tag is used for being arranged on clothes and has the advantages of chemical resistance, water tightness, heat resistance and good durability at a severe washing environment.

The embodiment of the invention provides a service processing method and system based on a micro-service architecture, and the method comprises the steps: after a terminal device receives registration success information of a service corresponding to a service processing request, the terminal device sends a query request to a risk control device through at least one service device at intervals, the query request is used for indicating to query a service processing state of a service corresponding to the service processing request; and the risk control equipment sends the business processing state, corresponding to the currently received query request, of the business to the terminal equipment through at least one service equipment. The service equipment and the risk control equipment always transmit information within the fusing time, so that the service equipment and the risk control equipment cannot be disconnected, and the terminal equipment can be ensured to acquire the processing result of the business subsequently and acquire the processing state of the business. And stable and efficient operation of the whole service system is ensured.

The present invention relates to a high speed puncher interlinked precise roll-to-roll material flexible circuit board manufacturing method. The method comprises: a first high speed punching step of laminating a transparent roll-to-roll removal film with a blue roll-to-roll removal film, and regularly forming standardized guide holes on both side edge portions of the width direction of the roll-to-roll material removed by rapidly punching a primary shape of a product; a second high speed punching step of laminating a polyimide film on the roll-to-roll material, produced in the first high speed punching step, by a hot melted adhesive and rapidly punching and removing a patterned terminal shape; and a pattern etching step of thermally laminating the roll-to-roll material, produced in the second high speed punching step, with a metal layer, again thermally laminating an exposure film thereon, exposing, developing and etching a fine and precise pattern, separating unnecessary portions, performing a washing operation and a drying operation, then marking defected portions when the pattern is inspected.

The invention relates to a single-screw metal screw pump stator and a processing method for an inner helical surface thereof. The stator is formed by corresponding screwing and bonding of two helicoids of which the cross sections are semicircular in shape, and corresponding screwing surfaces of the two helicoids are helical surfaces; and a groove with a semicircular bottom is arranged in the center line position of the helical surface of each helicoid and extends along the center line, the cross section of the groove is formed by a rectangle and a semicircle which forms a smooth connection with the lower part of the rectangle, the grooves of the two helicoids are screwed in a corresponding way to form the inner helical surface of the stator, and connecting parts are correspondingly arranged on the outer walls of the two helicoids. Because the metal screw pump stator is formed by corresponding screwing and bonding of the two helicoids, an open processing method can be used by firstly processing the groove in each helicoid and then carrying out corresponding screwing and bonding on the two helicoids to form a whole. Because the grooves are processed in an open mode, the machining ofthe grooves is facilitated, and the processing accuracy and the processing efficiency are improved.