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Manufacturing method in non-shaped state of long rod-shaped MIM product

A manufacturing method and long rod-shaped technology, which is applied to household components, household appliances, and other household appliances, etc., can solve problems such as easy generation of internal stress, high cost, and deformation of product rods, so as to avoid fracture or deformation and reduce manufacturing process Process, the effect of saving manufacturing cost

Inactive Publication Date: 2019-12-24
SHANGHAI FUTURE HIGH-TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. MIM process - low temperature material single gate route: low temperature material needs solvent degreasing, weak shaping ability, the product has been deformed during the degreasing process, the product stem & "U" shape mouth is seriously deformed, and there is no distortion in all directions Regularity, need to be shaped, and 4.0mm thick rod φ6 solid, 17-4 stainless steel material is difficult to shape, and easy to generate internal stress, there is a risk hidden danger for OEM loading
[0004] 2. Machining process: the product can be machined, but the cost is very high

Method used

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  • Manufacturing method in non-shaped state of long rod-shaped MIM product
  • Manufacturing method in non-shaped state of long rod-shaped MIM product

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Embodiment Construction

[0021] The technical points of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 As shown, this long-rod-shaped MIM product is a push rod component connected to an automobile clutch, including a straight rod part 1, one end of the straight rod part 1 is a U-shaped fork part 2, and the other end is a ball 3.

[0023] The manufacturing method of the above-mentioned long-rod MIM product in the non-reshaping state adopts high-temperature material double-gate glue injection, and adds reinforcement ribs to the middle part of the "U"-shaped mouth; the reverse compensation is added to the mold in the upper and lower directions of the "U"-shaped mouth; use Dedicated sintered support plate.

[0024] Such as figure 2 As shown, the first gate 4 of the double gates is set at the junction of the straight rod part and the U-shaped fork, and the second gate 4 is set on the sphere. More sp...

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Abstract

The invention discloses a manufacturing method in a non-shaped state of a long rod-shaped MIM product. The manufacturing method is characterized in that high-temperature material double gates are adopted and used for glue inlet, and reinforcing ribs are added on the middle part of a U-shaped opening; reverse compensation is added on a mold in the upper direction and the lower direction of the U-shaped opening; and a special sintered supporting plate is used. The manufacturing method has the beneficial effects that 1, strong reference significance for the development of the long rod-shaped product of the MIM technology is achieved; 2, the product is not shaped, the process is reduced, and the manufacturing cost is saved; 3, the failure of a whole vehicle system caused by breakage or deformation of the internal stress generated by shaping in the use process is avoided; and 4, the product cost is reduced by about 50%, and the acceptance of a client terminal is obtained.

Description

technical field [0001] The invention relates to a manufacturing method of an MIM product, in particular to a manufacturing method of a long rod-shaped MIM product in a non-reshaping state. Background technique [0002] The automobile clutch connecting push rod part includes a straight rod part, one end of the straight rod part is a U-shaped fork part, and the other end is a sphere. The car clutch connecting push rod part is made of 17-4PH stainless steel material, and the product length is 100mm. The following technical problems existed during the production process: [0003] 1. MIM process - low temperature material single gate route: low temperature material needs solvent degreasing, weak shaping ability, the product has been deformed during the degreasing process, the product stem & "U" shape mouth is seriously deformed, and there is no distortion in all directions Regularity, need to be shaped, and 4.0mm thick rod φ6 solid, 17-4 stainless steel material is difficult to...

Claims

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Application Information

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IPC IPC(8): B29C45/27F16D23/14
CPCB29C45/2708B29L2031/7486F16D23/14F16D2023/141
Inventor 孙松文王琼钱晶晶
Owner SHANGHAI FUTURE HIGH-TECH CO LTD
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