47results about How to "Optimize wall thickness" patented technology

A crosslink member for securing spinal rods is disclosed having connector ends that include a brace and a locking member, each having an arcuate face resting on and securing a spinal rod. The locking member is secured by a cam member that rotates relative to the locking member and that cams against the connector to displace the cam member. The crosslink includes a male connector with a cylindrical cross rod received by a cavity in a female connector. The cross rod is secured by a pivotable clamp device in the female connector, and the cross rod connector and female connector may pivot, rotate, and telescope relative to each other. To reduce size without sacrificing pivot sweep, the cross rod has beveled edges, and the cavity of the female connector has windows to provide pivot clearance.

A crosslink member for securing spinal rods is disclosed having connector ends that include a brace and a locking member, each having an arcuate face resting on and securing a spinal rod. The locking member is secured by a cam member that rotates relative to the locking member and that cams against the connector to displace the cam member. The crosslink includes a male connector with a cylindrical cross rod received by a cavity in a female connector. The cross rod is secured by a pivotable clamp device in the female connector, and the cross rod connector and female connector may pivot, rotate, and telescope relative to each other. To reduce size without sacrificing pivot sweep, the cross rod has beveled edges, and the cavity of the female connector has windows to provide pivot clearance.

A crosslink member for securing spinal rods is disclosed having connector ends that include a brace and a locking member, each having an arcuate face resting on and securing a spinal rod. The locking member is secured by a cam member that rotates relative to the locking member and that cams against the connector to displace the cam member. The crosslink includes a male connector with a cylindrical cross rod received by a cavity in a female connector. The cross rod is secured by a pivotable clamp device in the female connector, and the cross rod connector and female connector may pivot, rotate, and telescope relative to each other. To reduce size without sacrificing pivot sweep, the cross rod has beveled edges, and the cavity of the female connector has windows to provide pivot clearance.

The invention relates to the technical field of sports goods manufacturing, in particular to a method for making a raw ball arm blank with diversified inner wall thicknesses.The method comprises the steps of 1, cleaning a press bar die; 2, baking a steel core bar; 3, wrapping the steel core bar; 4, molding a silica gel press bar; 5, taking the silica gel press bar out; 6, making a raw ball arm blank pre-molded body; 7, molding the raw ball arm blank pre-molded body; 8, taking the silica gel press bar out.The raw ball arm blank produced with the method has more functions, the rejection ratio of raw ball arm blanks is reduced, and the obtained raw ball arm blank is stable in strength, high in ball control speed, good in hand feeling, uniform in ridge wall thickness and stable in quality.

The invention relates to a process and an installation for producing a press-hardened sheet steel component, comprising the steps of: a) heating (step S1) a component blank, formed from a hot-workable steel sheet, at least to the austenitizing temperature of the steel material by means of a heating device (20), b) hot working (step S2) the component blank by means of a forming tool (24), c) cooling (step S3) the component blank in the forming tool (24) to a temperature above the material-specific martensite finish temperature, preferably to a temperature of at least 200 DEG C, d) transferring (step S4) the component blank from the forming tool (24) to a heating device (26), e) tempering (step S5) the component blank while stabilizing the austenite by means of the heating device (26), wherein the component blank is transferred directly from the forming tool (24) to the heating device (26) (step S4) while avoiding cooling of the component blank to less than the material-specific martensite finish temperature, preferably less than 200 DEG C.

The invention relates to a method for producing a coupling on a pipe (1), preferably consisting of copper or steel or Cu-, Ni-, Fe-alloys, by a preferably graduated or one-stage expansion of the pipe end to create a much larger difference in diameter, an expansion tool (2) being introduced axially into the end of the pipe. The invention is characterised in that when and / or once the expansion tool (2) has been introduced into the pipe end the region of the pipe end that is to be or has been expanded is completely or partially compressed by a force acting axially on said pipe end, whereby the external diameter of the pipe end that is to be processed is delimited by one or more shaping jaws (3) that completely or partially surround the pipe end. The invention also relates to a device for producing a coupling on a pipe end according to said method.

The invention provides a novel hot rolling and precision forging technique for waste oil pipes and belongs to the waste oil pipe restoration technology. The defects of other current technologies are overcome. The production technique comprises the following steps of primary selection, descaling, flaw detection, rough rolling, precision forging and sizing, straightening, penetrating, length fixing, top cropping, detection and storage, specifically, the oil pipes are put into storage after passing the detection. The novel hot rolling and precision forging technique has the significance that firstly, the production cost is low; secondly, the product models are complete; thirdly, the product quality is high; fourthly, pollution is avoided during production; and fifthly, the production efficiency is improved.

A yarn braking body B is a flexible frustocone coat K made from plastic material P and has a circumferentially continuous braking surface F which is defined by a part of the inner surface of the frustocone coat. The yarn braking body B has a circumferentially continuous support part S at the small diameter end 2. The support part S is spherical and one piece with the frustocone coat K and is made from the plastic material of the yarn braking body B such that the centre Z of the sphere lies in the axis Y of the frustocone coat K which axis Y is prolonged beyond the large diameter end 1.

A novel carbon fiber pipe drawing and extruding die comprises a die sleeve, a die core and a die carrier, wherein the die core is arranged in the die sleeve; the die core and the die carrier are connected through a mandrel; inner edges, which limit the die core to move in the axial direction, are arranged at two ends of the die sleeve; and the die sleeve is formed by combining two sets of aluminium housings symmetrically arranged up and down. Only the die core is die steel; the die sleeve and the die carrier are aluminium products; and the die is relatively light, low in manufacturing cost, convenient and fast to dismount, fast and uniform to heat, and high in curing speed. Under the same condition, the die is relatively small in occupied area; when carbon fiber pipes are produced, multiple pipes can be produced simultaneously on one production line, so that the production efficiency is improved greatly. The die is simple in structure, and convenient to operate, the wall thickness of the product produced is uniform, the product is attractive in appearance, and the curing degree is high. Meanwhile, all that is needed to replace with products with other specifications is to process the die core and the mandrel, so that the production cost is lowered remarkably.

The invention discloses a micro-foam agent for oil field oil gas well cementation. The micro-foam agent is prepared from a micro-foam agent half-finished product and silicate clay mineral in the weight ratio of 1:25-35; the micro-foam agent half-finished product is prepared from the following components in parts by weight: 7-11 parts of rosin powder, 4-7 parts of silicate saponifier, 0.7-1.3 parts of high-temperature-resistant surfactant combination, 1.0-3.0 parts of well cementation reinforcing agent and 8-12 parts of water, wherein the silicate clay mineral is sepiolite clay or lithium-based bentonite; the silicate saponifier is sodium silicate or potassium silicate; the well cementation reinforcing agent is triisopropanolamine or triethanolamine; and the high-temperature-resistant surfactant combination consists of OP-10 and SP-80 in the weight ratio of 1:1 or APG (Alkyl Polyglucoside) and SP-80 in the weight ratio of 1:1. The invention also provides a preparation method of the micro-foam agent. Thus, a novel ultra-low density micro-foam well cementation cement slurry system with fine foam, high stability, simple preparation process and superior overall performance is established.

The invention relates to a casting device and process for a large 90-degree pressure-resistant aluminum alloy bend shell of extra-high pressure GIS switching equipment. The bend shell is of a 90-degree bend structure, flanges are arranged at the two ends of the bend shell, and the bend shell comprises a sand core lifting structure and a core box. The sand core lifting structure comprises a lifting hook, an embedded support connected with the lifting hook and a thick nut connected with the lifting hook and the embedded support. The core box is provided with a containing groove for containing a sand core, a notch for containing the lifting hook and a through hole allowing the containing groove and the notch to be communicated. The lower end of the embedded support of the sand core lifting structure is of a cross-shaped structure for locating two flange parts of the sand core respectively. The exact center of the upper portion between the two flanges of the sand core is located through the lifting hooks. An inner casting channel of the sand core comprises multiple vertical barrels connected with transverse casting channels and casting gates. By the adoption of the device and process, part casting quality can be improved, and it is guaranteed that parts receive the pressure of the hydraulic pressure destructive test requirement.

The invention designs a bevel mouth special nursing bottle, which mainly comprises a bottle body, a bottle neck and a nursing bottle cap, wherein the central line of the bottle neck and the central line of the bottle body form an angle of 145 to 160 DEG C. In production method of the bevel mouth special nursing bottle, a bottle neck mold is vertically arranged, a coarse mold is matched with the bottle neck mold and reversely placed, a bottle body mold in the coarse mold is obliquely arranged, liquid glass is filled into the coarse mold from bottom, then a small amount of air is blow into the coarse mold from the bottom of the coarse mold in a strong air flow immediately, and later an air blowing pipe is inserted from the middle of the bottle neck mold for blowing air till the nursing bottle is basically formed; the coarse mold is opened, the bottle neck mold and the nursing bottle are taken out at the same time, the nursing bottle is turned up and down twice, the liquidity of the glass in the coarse mold of the nursing bottle is kept, the nursing bottle is moved to the orifice of the air outlet pipe after turning, and a small amount of air is blown into the bottle body from the bottle neck; the nursing bottle is placed in a fine mold with the bottle neck obliquely placed, the bottle body is vertically downward, air is blown into the bottle body from the bottle neck, and the nursing bottle is formed into a specific size; and the nursing bottle is taken out, the bottle neck mold is opened, and thus, the bevel mouth special nursing bottle is obtained.

The invention discloses a blowing mould used for blowing a plastic hollow container. The mould comprises side moulds, a base mould and a base mould component guide rod. The side moulds include a left side mould and a right side mould, wherein a plurality of vent holes are arranged at the symmetric line of cavities of the two side moulds, used for exhausting air to the outside and arranged in the mould cavities to from vacuums. According to the blowing mould, technical difficulties that the molding is not full on the premises that the wall thickness of hollow products are smaller than 0.20mm, and the wall thickness is not uniform in two-step method injection, stretch and blow molding are overcome, and simultaneously, good effects for improving molding of hollow products with the thickness larger than 0.20mm are provided.

A pitman of a jaw crusher (1; 1') comprising an upper part (2), which comprises an upper supporting point (3) for supporting the pitman in the body of the jaw crusher, and a lower part (4) comprising a lower supporting point (5) for supporting the pitman in the body of the jaw crusher through a toggle plate. The lower part (4) of the pitman (1; 1') comprises sidewalls (13) and honeycomb structure open to the crushing direction, which structure comprises one or more cross-sectional supports (15) reaching from the first sidewall of the pitman to the second sidewalk A jaw crusher (100), a crushing plant (200) and a method for increasing crushing capacity of mineral material.