36results about How to "Reduce uneven force" patented technology

The invention belongs to the technical field of steel making and discloses a leveling method for cross break defects on the surface of a hot-rolled and acid-pickled plate. The leveling method comprises the steps that constant-rolling-force control is adopted by a hot-roll leveling unit, and a leveling and straightening mode is selected; a strategy of segmented pressure control over a deep bending roller is adopted, and the pressure of the deep bending roller is adjusted according to the cross sectional area of strip steel; and the elongation of the strip steel is controlled to be 3%-3.5%. By the adoption of the leveling method for the cross break defects on the surface of the hot-rolled and acid-pickled plate, the cross break defects are effectively eliminated; meanwhile, leveling operation is simplified, the probability of secondary leveling is lowered, and thus the product quality is improved.

The invention discloses a slotted hole machining method and a circuit board. The slotted hole machining method comprises the following steps that pre-drilled holes are drilled in a to-be-machined area, used for machining a slotted hole, of the circuit board; and at least two transition holes are drilled in the to-be-machined area by a milling cutter, wherein the diameter of each transition hole islarger than that of the corresponding pre-drilled hole, and the transition holes and the pre-drilled holes are partially overlapped. According to the slotted hole machining method, chippings generated in the milling process can be discharged from the pre-drilled holes; meanwhile, part of materials in the to-be-machined area can be removed in the milling process; when a slotted hole is formed in the to-be-machined area in the follow-up process, materials required to be removed in the to-be-processed area are reduced; the situation that a cutter head is stressed unevenly during machining can bereduced, the cutter head cannot deviate, the product quality is improved, and in the milling process, even if materials around the milling cutter are distributed unevenly, due to the fact that the milling cutter is high in rigidity, not prone to stress deviation and good in machining effect, subsequent machining cannot be affected, and the product quality can be improved.

The invention relates to a silicon wafer pressure setting and applying clamp for a plasma etcher, which comprises a clamp body, upright post screws, reset springs, pressing plates, tightening nuts and a numerical control torque wrench. The lower ends of the two upright post screws are fixed on the clamp body. The upper segments of the two upright post screws are provided with screw threads. The reset springs are sleeved on the upper segments of the upright post screws. The pressing plates are sleeved on the two upright post screws and are tightened by the tightening nuts. The tightening nuts are tightened by the numerical control torque wrench in a torque fixing mode. The whole stack of silicon wafers are arranged between the clamp body and the pressing plate and the pressing plate is tightened by the numerical control torque wrench through the two tightening nuts in a torque fixing mode, so that the pressure is set and applied to the whole stack of silicon wafers through the pressing plate. Therefore, the pressure of the whole stack of silicon wafers can be accurately controlled, nonuniform stress around the silicon wafers can be reduced, the products have consistent performance, and the etching effect is good.

The invention relates to an anaerobic adhesive used for sealing plastic members, and a preparation method thereof. The anaerobic adhesive comprises polyurethane methacrylate, a methacrylate monomer, a plasticizer, a promoter, a promoter aid, a strengthening agent, an initiator, a polymerization inhibitor and a chelating agent. The anaerobic adhesive used for sealing plastic members has the advantages of very good sealing effect, fast positioning time, no stress damages to the plastic members, and good stability, and can be preserved at normal temperature for at least two years.

The invention relates to the field of spiral gear machining and manufacturing equipment, in particular to involute spiral cylindrical outer gear grinding equipment. The involute spiral cylindrical outer gear grinding equipment comprises a cylindrical grinding support, a lathe bed, a supporting column and a driving system, wherein grinding heads are arranged on the inner wall of the grinding support, the grinding heads spirally surround the inner wall of the grinding support, and the winding distance of the grinding heads is consistent with that of a machined gear; the plurality of grinding heads which are close to one another and are used for grinding the adjacent tooth grooves of the to-be-machined gear form one grinding set, and the plurality of grinding sets are rotationally and symmetrically arranged relative to the central axis of the grinding support; and one end of the supporting column is installed on the driving system, the other end of the supporting column can be inserted into a machined gear shaft hole and drive the gear to rotate, the central axis of the supporting column coincides with the central axis of the grinding support, and the driving system can drive the supporting column to move along the central axis direction of the supporting column. The equipment has the advantages of being uniform in stress in the grinding process and high in grinding precision.

The invention provides a small-space suspender-free clamping suspended ceiling. The small-space suspender-free clamping suspended ceiling comprises a partition wall transverse keel, a limiting clamping piece, an n-shaped suspended ceiling plate keel and an F-shaped suspended ceiling plate seam clamping strip, wherein the partition wall transverse keel is installed on a suspended ceiling wall, thelimiting clamping piece is used as a connecting device for connecting the partition wall transverse keel with the n-shaped suspended ceiling plate keel, and the limiting clamping piece is clamped on the partition wall transverse keel, so that the inconvenience in operation in a screw fixing process is avoided; and the F-shaped suspended ceiling plate seam clamping strip is used for fixing a suspended ceiling plate, so that the stability of the suspended ceiling plate is increased, the suspended ceiling plate can adapt to the existence of wind pressure, the suspended ceiling plate cannot shakeor swing, and on the other hand, a gap between the suspended ceiling plate and the wall is sealed by the F-shaped suspended ceiling plate seam clamping strip. The invention further provides a mountingmethod of the small-space suspender-free clamping suspended ceiling. The suspended ceiling structure does not need to be suspended by a suspender, an original floor slab is not damaged, the suspendedceiling space is saved, additionally, the structure is compact, the occupied space is small, the installation steps are few, and the operation is convenient.

The invention provides a construction process of vibrating and sinking of a steel cylinder through a vibration hammer in a linkage mode. The construction process comprises the specific steps that a foundation trench is excavated; the steel cylinder is made and transported; hard stratum needing to be treated is treated through a DMS foundation treatment method; and the steel cylinder is vibrated and sunken. The soil mass property of an original natural foundation can be changed, the hard stratum is broken, the driving resistance of the steel cylinder or a similar foundation structure object is reduced, nonuniform stress in the driving process is reduced, and driveability is improved. According to the construction process, the complex foundation can be treated, limitation of geological conditions is avoided, and the using range of the steel cylinder or the similar foundation structure object can be widened. According to the vibrating and sinking process, the vibration hammer is used for linkage, timely monitoring and rectifying are achieved, efficiency is high, and the vibrating and sinking process is scientific and reliable .

The invention provides a long-life LED light-emitting module and a processing method thereof. The LED light-emitting module comprises a transparent base, multiple LED dies and fluorescent powder rubber layers. The LED dies are bound on the front of the transparent base and arranged and bound according to at least one annular ring. The first fluorescent powder rubber layer covers the back of the transparent base. The second fluorescent powder rubber layer coats the front of the transparent base and is divided into at least one circular fluorescent powder rubber ring, the fluorescent powder rubber rings are in one-to-one correspondence to the annular rings, and each fluorescent powder rubber ring covers all the LED dies of the corresponding annular ring. The problem of LED lamp failure caused by the fact that gold wires of the LED light source module are disconnected under the impact of cyclic stress due to thermal expansion and contraction of the rubber layers is solved.

The invention relates to the field of gear production and processing, in particular to a spiral cylinder inner gear groove grinding device. The spiral cylinder inner gear groove grinding device comprises a cylindrical grinding bracket, a lathe bed, a gear fixture and a driving system, wherein grinding heads are arranged on the bracket, the grinding heads are spirally wound on the cylindrical surface of the bracket, and the winding distance of the grinding heads is consistent with that of to-be-processed gears; 3 to 6 grinding heads which are close to each other and are used for grinding adjacent gear grooves of the to-be-processed gears form a grinding group, and a plurality of grinding groups are rotatably and symmetrically arranged relative to the central axis of the grinding bracket; the gear fixture is arranged on the driving system, and a gear workpiece can be clamped and driven to rotate by the gear fixture; and the fixture can be driven to move to the grinding bracket by the driving system. The device has the advantages of uniform stress in a grinding process and high grinding precision.

The present invention provides a long-life LED lamp light-emitting unit and a long-life LED lamp. The long-life LED lamp light-emitting unit comprises a pedestal and LED bare crystals, wherein the pedestal comprises a plurality of transparent bearing substrates which are arranged at intervals and in parallel, multiple LED bare crystals are bonded between every two bearing substrates which are adjacent, the multiple LED bare crystals can be connected through a lead, the pedestal is coated with fluorescent glue layers so that lights emitted by the LED bare crystals go out of the pedestal after passing through the fluorescent glue layers. The fluorescent glue layers can be separated from connection points of gold threads, thus the tension force to the gold threads caused by thermal expansion and cold contraction of the fluorescent glue layer is avoided, and the phenomenon that the connection point is broken due to the tension force and an arc is generated to burn the crystal is avoided. According to the above structure of the long-life LED lamp light-emitting unit, non-uniform stress of the gold thread can be reduced; through multiple layers of light emitting bodies and the multiple layers of light emitting units, in the case of the same light-emitting efficiency, heat dissipation area is increased, thereby prolonging the service life of an LED lamp.

The invention discloses ultrawhite photo-thermal glass anti-explosion detection equipment with a positioning structure. The ultrawhite photo-thermal glass anti-explosion detection equipment comprises a limiting seat, a collecting plate and a workbench. The bottom of the outer surface of the limiting seat is provided with a through groove, the collecting plate is inserted into the through groove, and the bottom of the limiting seat is connected with the workbench. A limiting sliding groove is formed in the front face of the limiting base, a limiting sliding block is slidably connected into the limiting sliding groove, and a sliding base is connected to the front face of the limiting sliding block. Through arrangement of a limiting seat, a limiting frame, a limiting sliding groove, a limiting sliding block, an auxiliary sliding groove and an auxiliary sliding block, a limiting assisting effect on sliding of a sliding seat is achieved when a worker uses the device, the clamping stability of a clamping block is improved through arrangement of the clamping block and a connecting clamping block, and through arrangement of a mounting piece and a fixing bolt, the mounting stability of the positioning sliding block is improved. And the frosted pad is arranged, so that a friction hindering effect is achieved on the placement of the glass plate, and the placement stability of the glass plate is improved.

The invention relates to a polygonal brake device comprising an iron core assembly. The iron core assembly is provided with a guide pin (5) connected with an armature (9); a brake disk (10) is clamped and fixed between the armature (9) and a traction machine; both sides of the brake disk (10) are provided with friction plates (11), and the brake disk (10) is connected with a rotating shaft of thetraction machine through a spline. The polygonal brake device is characterized in that the iron core assembly comprises a polygonal iron core, a slot positioned on the polygonal iron core is internally provided with an annular coil (2); the armature (9) which corresponds to the iron core assembly is of a polygon; the connecting structures of the iron core (1) and the armature (9) are all arrangedon corners of the polygon. The invention can enhance the brake effect of the brake device and reduce the processing process of the brake device, thereby saving the production cost.

The invention discloses a stabilizing treatment device for a foundation pit slope. The stabilizing treatment device comprises a supporting base, wherein a rotating platform is rotatably arranged at the top end of the supporting base, a first vertical frame is arranged on one side of the upper portion of the rotating platform, a connecting rod is arranged on one side of the first vertical frame, a nested clamping rod is fixed to one end of the connecting rod, a crushing roller is rotationally arranged in the nested clamping rod, one end of the crushing roller is connected with a transmission assembly, and a lifting device used for lifting the connecting rod is arranged in the first vertical frame. The stabilizing device is suitable for stabilizing foundation pit side slopes of different depths, protruding soil piles on the surfaces of the side slopes can be leveled rapidly through the crushing roller, then the side slope soil layer can be compacted by controlling fixing blocks to hammer the side slopes through a reciprocating transmission device, leveling and pressing of the foundation pit side slopes are achieved, the stabilizing effect is good, and side slope mud blocks or stones can be prevented from falling to injure foundation pit constructors.

The water supply pipe buttress comprises a buttress lower block, a buttress upper block and a plurality of height adjusting supports, the buttress lower block, the buttress upper block and the height adjusting supports are arranged in the pipe gallery, the buttress lower block is a horizontally-arranged cuboid-shaped supporting body, and the bottom of the buttress lower block is fixed to a pipe gallery body; the buttress upper block is a horizontally-arranged block body and is located above the buttress lower block, and the distance between the buttress upper block and the buttress lower block is adjustable; the upper part of the buttress upper block is used for supporting and bearing a water supply pipeline; the height adjusting supports are vertically arranged between the buttress lower blocks and the buttress upper blocks, and the upper ends and the lower ends of the height adjusting supports are connected with the corresponding buttress upper blocks and the corresponding buttress lower blocks; and all the parts can extend upwards or shorten downwards. When differential settlement of the buttress occurs, the relative height between the adjacent buttress upper block and buttress lower block is adjusted, so that the buttress upper block is located at the initial spatial position, the buttress upper block supports the water supply pipe and enables the water supply pipe to be evenly stressed, and therefore the purpose of reducing uneven stress of the water supply pipe caused by differential settlement of the comprehensive pipe gallery is achieved.

The invention discloses a ship rudder stabilization and energy-saving system, and relates to the technical field of ships. Specifically, it is composed of a rudder stabilizing diverter unit, a rudder empennage stabilizing unit, a rudder lower arc energy-saving unit, a rudder upper ladder line energy-saving unit, and a rudder control energy-saving unit. The rudder deflector stabilization unit includes a steering plate deflector and a horizontal shafting deflector; the rudder empennage stabilization unit includes a rhomboid empennage and a composite joint surface; the lower arc energy-saving unit of the rudder steering plate includes a lower arc The vertical height position of the line apex; the ladder line energy-saving unit on the rudder steering plate includes the vertical height position of the trapezoid and the trapezoidal waist; the rudder control energy-saving unit is the horizontal position of the lower arc and the apex position of the upper ladder platform, The torsion golden centerline formed by the line connecting two points. The invention reduces the vibration of the rudder, improves the stability of the rudder, reduces the flow resistance of the rudder and controls the torque, and enhances the precision, directivity, response speed and service life of the rudder.

The invention discloses a processing technique for a speaker frame with a plurality of blanks. The processing technique for the speaker frame with a plurality of blanks includes steps of cutting, blanking, stretching, punching, trimming, single pattern punching, ear hole punching and air hole punching. The processing technique for the speaker frame with a plurality of blanks is capable of precisely punching each blank.

The invention discloses a nutrition bowl facilitating transplanting and field planting. The nutrition bowl facilitating transplanting and field planting comprises one or more longitudinal pull strips and one or more circumferential pull strips which are arranged on the side wall of a bowl body, wherein the upper ends of the longitudinal pull strips are positioned at the upper edge of the nutrition bowl, and the lower ends of the longitudinal pull strips are positioned at the circumferential braces; and the circumferential pull strips are parallel to the bottom plane of the nutrition bowl and are positioned at the positions, close to the bottom of the nutrition bowl, on the side wall of the bowl body. By arranging the longitudinal pull strips and the circumferential pull strips, when transplanting operation is carried out, a matrix in the nutrition bowl can be completely and nondestructively taken out without pulling seedlings by hands or flapping and vibrating the matrix due to the fact that the matrix adheres to the inner wall of the nutrition bowl, and it is guaranteed that the matrix does not deform and the roots of the seedlings are not damaged; and in the ridging and compacting process, due to the fact that the side wall of the nutrition bowl serves as a protection layer for the matrix, uneven external force generated on the matrix and the roots of the seedlings due to uneven circumferential pressure generated by ridging on the matrix can be reduced, and therefore, the effects of preventing the matrix from becoming loose and protecting the roots of the seedlings are achieved.

The invention discloses a nested box type floating disc structure. The floating disc structure comprises a nested middle body and a nested combination body surrounding the periphery of the nested middle body, wherein the nested middle body and the nested combination body are connected through an inner ring buckle and an outer ring buckle; the nested combination body is composed of a plurality of sub combination bodies; each sub combination body is of an axisymmetric structure; the sub combination bodies comprise the first sub combination body, the second sub combination body,..., and the nth sub combination body which sequentially surround the periphery of the nested middle body; and every two of the first sub combination body, the second sub combination body,..., and the nth sub combination body are connected through an inner ring buckle and an outer ring buckle. According to the nested box type floating disc structure provided by the invention, stress is stable and conduction is uniform through the structural arrangement of the nested box type floating disc structure, the strength problem under a beam-free structure is solved, use of mounting bolts is greatly reduced, uneven stress is reduced, structural balance weight does not need to be used for reinforcement, dismounting and mounting are convenient, and the occurrence rate of safety accidents such as rollover is reduced.

The invention relates to the technical field of building insulation, in particular to a quick inserting component for a building external wall insulation board. The quick inserting component for the building external wall insulation board comprises a connecting rod piece and an inner side connecting seat arranged on the inner side of an insulation board, the insulation board, an outer side grid and the inner side connecting seat on the two sides of the insulation board are connected into a whole through the connecting rod piece, and an anti-falling shoulder is arranged on the side wall of theconnecting rod piece; at least one mounting table is arranged on the inner side connecting seat, the mounting table comprises an annular wall, the annular wall is at least provided with two elastic movable petals extending from the inner wall of the annular wall to the center of the annular wall, and a clamping shoulder is arranged on the outer circumferential face of the annular wall; and the mounting table abuts against an ejector rod, a cylindrical clamping head is arranged on the mounting side of the ejector rod, and a clamping opening matched with the clamping shoulder is formed in the cylindrical wall of the cylindrical clamping head. According to the quick inserting component, the elastic movable petals are connected with the anti-falling shoulder of the connecting rod piece in a matched mode, inserting is more convenient, the elastic movable petals can provide enough supporting strength, the structural stability of the integrally-formed insulation board is improved, and reinforcing ribs prevent a connecting piece from swinging.

A manufacturing method of a chip package structure is provided. A circuit substrate and a chip are provided. The circuit substrate is formed with a two-stage thermosetting adhesive layer. An active surface of the chip is formed with a conductive pillar and a support pillar. The circuit substrate is passed through the two-stage thermosetting adhesive layer to abut the active surface of the chip. The two-stage thermosetting adhesive layer is dropped between the conductive pillar and the support pillar. A bonding process is performed, and the chip is electrically connected to the circuit substrate through the conductive pillar and supported by the support pillar to be positioned on the circuit substrate. The two-stage thermosetting adhesive layer is fully cured. An encapsulant is formed on the circuit substrate to encapsulate the chip, the conductive pillar, the support pillar and the two-stage thermosetting adhesive layer. A chip package structure is also provided.

The invention discloses a structure of a shield launching portal and a shield launching construction method. The structure of the shield launching portal comprises shield shaft main structures. The shield shaft main structures are made of plain concrete walls. A shield tunnel is arranged between the shield shaft main structures. A building enclosure made of a plain concrete wall is arranged at the end of the shield tunnel. The horizontal section of the building enclosure is arched, and the building enclosure can automatically distribute water and soil pressure outside a shield shaft into a rock-soil stratum outside the shield shaft evenly. A plurality of glass fiber rib guard posts are evenly arranged in the building enclosure. The arched plain concrete wall can distribute the water and soil pressure from the outside of the shaft into the rock-soil stratum outside the working shaft evenly, so that the probability that the stress on the upper portion and the lower portion of a conventional sealing portal is nonuniform is lowered, and the self-stabilization capacity of the stratum is brought into full play; through the high tensile strength of glass fiber ribs, deformation of the portal and the stratum around the portal is effectively reduced; and under the existence of the sealing portal, a shield tunneling machine advances directly to cut plain concrete and the glass fiber ribs, and thus the risk of water gushing and sand gushing which are caused by dismounting of the sealing portal is avoided.

The invention discloses a device for mounting a plunger pump. The device comprises a multiplier air cylinder; a compression piston is arranged on the multiplier air cylinder, hydraulically driven and used for providing axial pressure for an end cap on the plunger pump in the mounting process. The invention further discloses a method for mounting the plunger pump, which comprises the following steps: power assembly mounting, high-pressure cylinder mounting, end cap initial mounting, multiplier air cylinder mounting, pressurizing, end cap fixing, multiplier air cylinder removing and the like. The device and the method for mounting the plunger pump, disclosed by the invention have the advantages that the method is simple; the mounting cost is lower; the situation of oblique mounting of the end cap can be reduced as much as possible, so that the oil leakage quantity is greatly reduced, and the service life of the plunger pump is prolonged.

The invention discloses a rudder stabilizing and energy-saving system and relates to the technical field of ships. The system specifically comprises a rudder stabilizing flow guide body unit, a rudderempennage stabilizing unit, a rudder lower arc energy-saving unit, a rudder upper ladder line energy-saving unit and a rudder control energy-saving unit; the rudder flow guide body stabilizing unit comprises a direction plate flow guide body and a horizontal shafting flow guide body; the rudder empennage stabilizing unit comprises a rhombic empennage and a composite junction surface; the rudder lower arc energy-saving unit comprises a vertical height position of a lower arc vertex; the rudder upper ladder line energy-saving unit comprises a trapezoidal vertical height position and a trapezoidal waist; the rudder control energy-saving unit is a torsion gold center line formed by the connecting line of a lower arc horizontal position and an upper ladder terrace vertex position. With the system adopted, the jitter of a rudder is reduced, the stability of the rudder is improved, the flow resistance and control torsion of the rudder are reduced, the accuracy, directivity and reaction speedof the rudder are improved, and the service life of a shafting system is prolonged.