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Integrated sheathing method for powder metallurgy plate

A powder metallurgy and wrapping technology is applied in the field of integrated wrapping of powder metallurgy sheets, which can solve the problems of low bonding strength and cumbersome process, and achieve the effects of good effect, simple process and strong designability.

Pending Publication Date: 2022-06-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of cumbersome flow and low bonding strength of the traditional sheathing method

Method used

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  • Integrated sheathing method for powder metallurgy plate
  • Integrated sheathing method for powder metallurgy plate
  • Integrated sheathing method for powder metallurgy plate

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0027] Embodiment 1: The integrated wrapping method of the powder metallurgy sheet in this embodiment is specifically carried out according to the following steps:

[0028] 1. Weigh the powder metallurgy billet powder and the wrapping material powder;

[0029] 2. Fill the bottom of the overall mold with the powder of the packaging material and shake it;

[0030] 3. Place the separating mold along the central axis of the overall mold on the upper part of the packaged material powder after vibration;

[0031] 4. Fill the powder metallurgy billet powder into the separation mold, and then fill the gap between the overall mold and the separation mold with the powder of the packaging material, and the whole is shaken;

[0032] 5. Take out the separation mold vertically upward, and perform the overall vibration again;

[0033] 6. Fill the powder of the coating material on the top of all the powders for capping, and then conduct the overall powder compaction to obtain a fully enclos...

specific Embodiment approach 2

[0035] Specific embodiment 2: The integrated wrapping method of the powder metallurgy sheet in this embodiment is specifically carried out according to the following steps:

[0036] 1. Weigh the powder metallurgy billet powder and the wrapping material powder;

[0037] 2. Place the separating mold on the bottom surface of the overall mold along the central axis of the overall mold;

[0038] 3. Fill the powder metallurgy billet powder into the separation mold, and then fill the gap between the overall mold and the separation mold with the powder of the packaging material, and the whole is shaken;

[0039] 4. Take out the separating mold vertically upwards, and perform the overall vibration again to obtain the semi-closed envelope powder;

[0040] 5. Perform powder metallurgy, demoulding, and machining on the semi-closed envelope powder, and finally obtain an integrated closed envelope component of the powder metallurgy plate.

specific Embodiment approach 3

[0041] Embodiment 3: This embodiment differs from Embodiment 1 or 2 in that: the integral mold is a steel mold or a graphite mold, and the partition mold is an acrylic mold or a metal mold. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to an integrated sheathing method for powder metallurgy plates, in particular to an integrated sheathing method for powder metallurgy plates. The invention aims to solve the problems of tedious process and low bonding strength of the traditional sheathing method. The integral mold and the separation mold are adopted for powder filling, jolt ramming and cold pressing, powder metallurgy and machining, and the integrated sheath assembly is obtained. The designability is high, the process is simple, and the wrapping material and the production cost are saved. The method is used for the sheathing process of the powder metallurgy plate.

Description

technical field [0001] The invention relates to an integrated wrapping method for powder metallurgy sheets. Background technique [0002] Powder metallurgy, as a process technology for manufacturing metal materials, composite materials and various types of products, is formed by forming and sintering metal powder (or a mixture of metal powder and non-metal powder) as a raw material. Since powder metallurgy technology has become the key to solving the problem of new materials, it plays a pivotal role in the development of new materials. However, some powder metallurgy materials with limited plasticity often have surface cracks, edge cracks and other problems during late hot extrusion, hot rolling and other hot processing, which affect the mechanical properties of the material and later engineering applications. [0003] The wrapping process is an effective means to solve the above problems. It can not only keep the heat, but also help to improve the deformation uniformity of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/093B22F5/00B22F7/06
CPCB22F3/093B22F5/00B22F7/06
Inventor 姜龙涛张润伟晁振龙陈国钦修子扬张强苟华松武高辉
Owner HARBIN INST OF TECH
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