Manufacturing method of mandrel part, mandrel part and textile machine using same

A manufacturing method and component technology, which is applied to mechanical equipment, gear transmission mechanisms, friction linings, etc., can solve the problems of powder metallurgy process implementation procedures, adding separate procedures, etc., to reduce the risk of failure, simple operation, and qualified mechanical properties Effect

Active Publication Date: 2021-08-06
SANYANG TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This pretreatment of the material interface at present often has a great impact on the implementation procedures of the powder metallurgy process, such as having to press the powder separately or having to add a separate program for the treatment of the interface

Method used

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  • Manufacturing method of mandrel part, mandrel part and textile machine using same
  • Manufacturing method of mandrel part, mandrel part and textile machine using same
  • Manufacturing method of mandrel part, mandrel part and textile machine using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] see first figure 2 , in this example figure 2 In the hot pressing mold shown, powder metallurgy is used to manufacture bi-material or multi-material cylindrical mandrel parts, which are used in textile machinery equipment.

[0029] It should be noted that, in order to make an easy-to-understand introduction to the principle of the present invention, the shape of the product in this embodiment is a regular columnar shape after the simplification of the real thing. It is easy to understand that the structural shapes of the mandrel parts in mechanical equipment may be various. For example, stepped, spliced, hollow, etc., as long as they meet the internal and external dual-material structure and can be manufactured by the method described in the present invention.

[0030] Specifically, the hot pressing mold structure includes a mold upper cover 4, a mold lower cover 5 and a ring sleeve 6, and the mold upper cover 4, the mold lower cover 5 and the ring sleeve 6 encircle ...

Embodiment 2

[0042] see still Figure 1-Figure 4 , the preparation target, the hot pressing mold used and the technology adopted in this embodiment are basically the same as those in Example 1, and the interface model cylinder 3 used is also the same, the difference is that in the charging according to the design specifications The laid first powder raw material 1 and the second powder raw material 2 are mixed with a molding agent with a volume content of 7%, and the interface mold cylinder 3 is placed in the center of the mold cavity and the first powder raw material 1, the second powder raw material After the powder raw material 2 is laid in the space on both sides of the interface mold cylinder 3, it is degreased and sintered. During the degreasing process, the interface mold cylinder 3 is decomposed and removed together with the molding agent.

[0043] The final temperature of the above-mentioned degreasing process in this embodiment is subject to the complete decomposition of the mold...

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Abstract

The manufacturing method of the mandrel part, the manufactured mandrel part is a double-material or multi-material columnar part, which can be used in such as textile machinery, using the first powder raw material as the core supporting raw material, using the second powder raw material as the working surface raw material, according to Design specification charging, the first powder raw material is inside, the second powder raw material is outside, an interface model cylinder is placed between the first and second powder raw materials, the wall of the interface model cylinder has an undulating structure, which can be thermally decomposed The way of degassing, pre-burning or degreasing is removed between the first and second powder raw materials, and after the interface model cylinder is removed, the first and second powder raw materials are respectively metallurgically sintered to form the core support and working surface, which are formed at the sintering interface. The non-linear interface configuration corresponding to the undulating structure shape of the wall of the interface model cylinder. The method is simple and quick to operate, does not need to separately press the powder, does not need to add a separate operation procedure for interface treatment, and the core support can be constructed as solid or hollow, and has wide application.

Description

technical field [0001] The invention relates to the technical field of manufacturing mechanical friction parts, in particular to a manufacturing method of a mandrel part, the mandrel part and a textile machine using the mandrel part. Background technique [0002] Many mandrel parts used to bear the friction in the rotating motion in mechanical equipment are dual-material or multi-material parts. The core material acts as a basic support, and the surface material acts as a wear-resistant working part to withstand or prepare to withstand the force imposed by the rotating working part. Friction, this kind of mandrel parts can also be made by powder metallurgy process, for example, metal powder material with better strength and plasticity is used as the core support material in the production process, which plays the role of basic support and prevention of deformation and fracture. Use metal powder materials with more outstanding strength and wear resistance as the wear-resistan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02B22F7/02B22F3/14
CPCF16D69/027B22F7/02B22F3/14F16D2200/0008F16D2200/0026F16D2200/0086
Inventor 刘虎城陈新庆
Owner SANYANG TEXTILE
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