High-density super-hard material manufacturing method

A technology of superhard materials and production methods, which is applied in transportation and packaging, metal processing equipment, etc., can solve the problems of unstable product quality, low density, uneven product density, etc., and achieve good density and sintering shrinkage The effect of small size and high product dimensional accuracy
CN106495698AInactive Publication Date: 2017-03-15眉山市奔朗新材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
眉山市奔朗新材料科技有限公司
Publication Date
2017-03-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

A high-density super-hard material manufacturing method includes the steps: weighing formula raw materials; uniformly stirring the formula raw materials in a mixer; pre-forming the formula raw materials by a hydraulic former; performing vacuum pumping seal in a flexible film bag; performing isostatic pressing secondary pressure shaping in a high-pressure container; demolding; performing normal pressure sintering in an electric furnace; forming products. The manufacturing method has the advantages that product blanks are more compact and higher in strength and damage to semi-finished products is low in the production process as the product blanks in the high-pressure container are secondarily pressurized and shaped in different directions by the aid of pressurizing media, the product blanks are uniform in density, low in sintering shrinkage and high in dimensional precision, so that high compactness and high strength of the products are ensured, the yield of the products is improved, hot pressed sintering of the product blanks in the intermittent electric furnace is omitted, so that the product blanks can be sintered in a continuous electric kiln, the labor intensity of workers is greatly relieved, production efficiency is improved, and production cost is reduced.
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Description

technical field

[0001] The invention relates to the field of superhard material products, in particular to a method for manufacturing high-density superhard material products, wherein the superhard material products at least include grinding heads, grinding tools, knives and the like. Background technique

[0002] The manufacturing method of existing superhard material product has following several kinds:

[0003] (1) Gel injection molding, the process flow is:

[0004] a. Various formula raw materials that meet the particle size and purity requirements are weighed in proportion and stirred together in the mixer;

[0005] b. Add the non-toxic gel premix in proportion, and then stir evenly to form a slurry;

[0006] c. Inject the slurry into the plastic mold of the product with a pressure injection machine;

[0007] d. Keep warm for 20 minutes in a temperature room of 80-90°;

[0008] e. Dry at room temperature for 24 to 48 hours;

[0009] f. Remove the mold and place it...

Claims

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