57results about How to "Reduce subsequent processing" patented technology

The invention relates to a foamed plastic packing box and a preparation method thereof. Aim at solving problems produced in packing box production thereby satisfying increasing requirements from people on packing boxes, the invention provides the foamed plastic packing box and the preparation method thereof. The foamed plastic packing box comprises: by weight, 90 to 110 parts of polystyrene resin, 0.8 to 0.9 parts of sodium bicarbonate NaHCO3, 0.046 to 0.078 parts of silicone oil, 11 to 14 parts of modified polystyrene resin and 2.5 to 5 parts of industrial starch. Compared with the prior art, the foamed plastic packing box reduces environmental pollution, has good environmental benefits, reduces follow-up processes, and has a low cost and a good cost-performance ratio.

The invention discloses a carbon-based wave absorbing material prepared from aluminosilicate polymer and a preparation method of the carbon-based wave absorbing material. The carbon-based wave absorbing material is formed by using metakaolin, a carbon material and an alkali activating solution to synthesize the aluminosilicate polymer and curing, wherein a mole ratio of metakaolin and the carbon material is 1:(3-24), and a mole ratio of silicon and aluminum in the aluminosilicate polymer is (1-2):1. The preparation method includes: activating kaolin; preparing mixed powder; preparing the alkali activating solution; preparing the aluminosilicate polymer; curing for forming. The preparation method is simple in process, capable of realizing direct forming of complex or large parts at low temperature and wide in application range. The carbon-based wave absorbing material is low in cost and high in unit thickness absorptivity and meets requirements on thinness, lightness, width and strength.

The invention discloses a seamless steel tube perforator piercing point on-line regulating device, which comprises a piercing rod and a piercing rod trolley, wherein the piercing point is at one end of the piercing rod and is a cone; the terminal line of the cone is a straight line with transitional curves at two ends; and the other end of the piercing rod is arranged on the piercing rod trolley. The seamless steel tube perforator piercing point on-line regulating device is characterized by also comprising a locking device, wherein the position of the piercing rod trolley is locked by the locking device; when the piercing point presses a tube blank of a seamless steel tube, the locking device can move the locked position of the piercing rod trolley along the moving direction of the tube blank, so that the piercing rod can move together with the piercing rod trolley by means of a rolling force. According to the device, the piercing point can move along the moving direction of the tube blank in a tube blank perforation process, so that the outside diameter of the piercing point in a tube blank perforating forming region can be reduced to compensate for the increase of the outside diameter of the piercing point with heat expansion in the tube blank perforation process; and thus, the outside diameter of the piercing point in the tube blank perforating forming region can keep stable and constant, and the inside diameter of a tubular billet formed by tube blank perforation is not changed.

The invention relates to a flow-controllable powder feeder for a plasma spraying welding gun, and belongs to the field of plasma spraying welding tool equipment. The flow-controllable powder feeder comprises a powder bin, conveying barrels, a connecting base, a base and a control system; a discharging nozzle at the lower end of the powder bin vertically penetrates the connecting base to enter inner cavities of the conveying barrels, and each conveying barrel is composed of a feeding adjustor and a drum conveyor; and the conveying barrels are correspondingly arranged in an inner cavity of a barrel up and down. On one hand, the feeding adjustor drives the discharging nozzle to spirally and vertically move so as to adjust a gap between a nozzle opening of the discharging nozzle and a drum of the drum conveyor under the discharging nozzle; and on the other hand, the drum conveyor controls the rotating speed of the drum so as to control the conveying speed of powder falling to the drum face from the discharging nozzle, falling off in a rotating manner and passing through a discharging opening, so that powder flow control is achieved. The flow-controllable powder feeder is accurate in control, the powder feeding continuity is good, the spraying welding layers are even, follow-up machining of the spraying welding layers is reduced to the maximum degree, waste of dusty materials is effectively avoided, and equipment guarantees are provided for the uniformity and the grade of the spraying welding layers.

The invention belongs to the related technical field of arc additive manufacturing, and discloses a complex part partition manufacturing method based on temperature distribution. The manufacturing method comprises the following steps that firstly, based on manufacturing constraints, parts to be manufactured are layered, and each layer is subjected to area division; secondly, according to the partition shape, a filling path is planned, the filling path type and the direction of each partition are determined, and meanwhile the partition, with the minimum deforming amount, in the partitions serves as an initial manufacturing partition; thirdly, the initial manufacturing partition of the current layer is subjected to deposition filling, before one partition is manufactured through deposition,the remaining partitions of the current layer are subjected to thermal imaging scanning, temperature distribution of the remaining partitions is calculated, the partition, with the minimum partition average temperature, in the non-filled area is selected as the next manufacturing partition, and deposition filling continues until machining of the current layer is finished; and fourthly, the third step is repeated, and layer-by-layer machining is carried out until the pars to be manufactured are manufactured. Part quality and performance are improved.

The invention provides a near-net-shape forming mold and near-net-shape forming method of a high-silicon aluminum alloy shell. The mold comprises long side pressing plates, short side pressing plates,an upper pressing block, a lower pressing block and a steel sleeve, wherein the long side pressing plates and the short side pressing plates are assembled into a mold frame, and the mold frame is provided with a mold cavity with an upper opening and a lower opening; and the upper pressing block and the lower pressing block can move in a reciprocating mode in the mold cavity, the top surface of the lower pressing block is provided with a boss, and the combined mold is fixed by the steel sleeve. The near-net-shape forming method of the high-silicon aluminum alloy shell comprises the following steps that gas atomization is conducted to prepare powder to obtain an aluminum-silicon raw material, a graphite mold is subjected to surface coating, drying and combination, then the raw material is flatly laid in the mold for pressure sintering, and mold stripping is conducted to obtain an aluminum-silicon shell material. According to the near-net-shape forming mold and near-net-shape forming method of the high-silicon aluminum alloy shell, the mold design is combined with the pressure sintering to directly manufacture the high-silicon aluminum alloy electronic packaging shell, the productionefficiency and the raw material utilization rate are improved, the preparation process is controllable, and is good in stability, and the method has extremely high industrial application value, and can be popularized to the manufacturing of other metal materials.