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Method for manufacturing sampler through powder injection moulding

A powder injection molding and sampler technology, which is applied in the field of sampler preparation, can solve the problems of low output, waste, labor, and a large number of equipment

Inactive Publication Date: 2016-02-03
NINGBO YUXIN METAL POWDER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional samplers with complex three-dimensional shapes are made of stainless steel. Production requires a series of equipment, such as machining centers, punching machines, milling machines, precision punching machines, wire cutting, etc., requiring a lot of equipment and labor. , there is a problem of high production cost, low output and low waste of resources, especially because the three-dimensional shape of the sampler is complex, so the processing difficulty is high. The metal powder injection molding process can solve the above problems well, but the metal powder injection molding process is due to the degreasing rate. Problems can easily affect the performance of the product

Method used

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Embodiment Construction

[0015] A detailed description will be given below of specific embodiments of the present invention.

[0016] The preparation method of the sampler of powder injection molding, the steps include the following steps in sequence:

[0017] (1) Granulation, the metal powder and the binder are blended through a banbury mixer, the banbury temperature is 180 degrees, and after 3 hours of banbury mixing, natural cooling is obtained to obtain the fluidity of the pellets, which are extruded by a screw extruder. Granules become rheological pellets; according to the mass ratio of pellets, the metal powder is 93%, and the binder is 7%; the metal powder is mixed by the following components according to the mass ratio: C0.07%, Cr16. 9%, Ni4.5%, Mn0.92%, SI1%, P0.04%, S0.03%, Cu5%, Nb0.2%, Ta0.2%, and the balance is Fe; the binder consists of the following Mixed components: palm wax 10%, microcrystalline wax 13%, vinyl acetate 2%, paraffin wax 48% stearic acid 1%, polyethylene 8%, polypropyle...

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Abstract

The invention relates to a method for manufacturing a sampler through powder injection moulding. The method for manufacturing the sampler through powder injection moulding sequentially comprises the following steps of granulation, namely metal powder and a binder are blent through a smelting machine so as to become granules with rheological property; injection moulding, namely the granules are injected into a mould cavity with the shape of the sampler to form a workblank; degreasing, namely part of the binder in the workblank is removed, and aviation kerosene is adopted as a degreasing solvent; and sintering, namely the binder is removed to obtain the sampler. The method for manufacturing the sampler through powder injection moulding has the advantages that the degreasing rate is high; the product property is good; and the production cost is low.

Description

technical field [0001] The invention relates to a preparation method of a metal powder injection molded sampler. Background technique [0002] Traditional samplers with complex three-dimensional shapes are made of stainless steel. Production requires a series of equipment, such as machining centers, punching machines, milling machines, precision punching machines, wire cutting, etc., requiring a lot of equipment and labor. , there is a problem of high production cost, low output and low waste of resources, especially because the three-dimensional shape of the sampler is complex, so the processing difficulty is high. The metal powder injection molding process can solve the above problems well, but the metal powder injection molding process is due to the degreasing rate. Problems can easily affect the performance of the product. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing a powder injection molding sampler wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00C22C38/48B22F3/22
Inventor 肖军杨东
Owner NINGBO YUXIN METAL POWDER TECH CO LTD
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