Production method of cermet profiles

A production method and cermet technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of product deformation, uneven density, uneven dryness and wetness, etc., and achieve the effect of qualified product size, prolonged stirring time, and uniform density

Active Publication Date: 2022-02-22
自贡鼎力合金材料有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The profiles often have one or several sizes as large; the specific gravity of cermet powder is much lower than that of cemented carbide powder. When mixing and stirring, it is easy to agglomerate after adding the forming agent, resulting in uneven dryness and wetness inside. Unable to shape during pressing or uneven density
Due to the uneven density, different shrinkage will be caused during the sintering process of the product and the product will be deformed and become a waste product

Method used

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Embodiment Construction

[0008] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0009] The production method of cermet profiles, including: batching --→ wet grinding --→ mixing (adding molding agent) --→ pressing molding --→ drying --→ half plus half inspection --→ sintering --→ finished product inspection, The ingredients: dope WC and Co according to a certain proportion (the proportion varies according to the brand) and other additive elements (such as Ta and Nb); wet grinding: put the prepared material into the ball mill, add methanol as the medium, and use Alloy balls grind the material, the ball-to-material ratio is 4:1, and the rolling time is 24-72 hours; mixing: after the wet-milled slurry is dried and sieved, the molding agent is...

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PUM

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Abstract

A production method of cermet profiles, the extrusion production process includes: batching‑‑→wet grinding‑‑→mixing (adding molding agent)‑‑→pressing molding‑‑→drying‑→half plus half inspection‑→ Sintering‑‑→Finished product inspection. The production method of the cermet profile of the present invention is to change the composition ratio of the molding agent, adjust the stirring frequency and prolong the stirring time, so that the stirred material particles are moderate, the density is uniform, the final product size is qualified, and there is basically no deformation.

Description

technical field [0001] The invention relates to the technical field of profile production methods, in particular to a production method of cermet profiles. Background technique [0002] Cermet is made of titanium carbide, tungsten carbide, etc. as the matrix, and cobalt, nickel, chromium, tungsten, molybdenum and other metals. It has the characteristics of high hardness, high wear resistance, and high temperature resistance. The profiles include rods, pipes, etc. , strips, etc. Domestic cermets are generally produced by molding. Molding is generally formed by applying pressure to the mixture in the mold cavity in one or two directions. This method leads to uneven internal density of semi-finished products, especially on products with large sizes. The profiles often have one or several sizes as large; the specific gravity of cermet powder is much lower than that of cemented carbide powder. When mixing and stirring, it is easy to agglomerate after adding the forming agent, r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/10C22C1/05C22C29/08
CPCC22C1/051C22C29/08B22F2998/10B22F1/10
Inventor 曹剑向钢
Owner 自贡鼎力合金材料有限公司
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