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Processing method for surface quality of castings

A technology of surface quality and treatment method, applied in the field of surface quality treatment of castings, can solve problems such as casting quality problems, and achieve the effect of improving labor efficiency, solving surface quality problems and saving manpower

Inactive Publication Date: 2015-03-25
LIUZHOU JINTE NEW WEAR RESISTANT MATERIAL CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the traditional casting process causes quality problems on the surface of castings, and urgent solutions are needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The embodiment provided by the present invention is described in further detail:

[0015] A treatment method for casting surface quality, comprising the following steps:

[0016] (1) The ratio of the surface coating applied on the surface of the wax model is: 55%-57% of quartz powder, 35%-38% of water glass, and 8% of water. The amount of admixture added is the total amount of the first three items Detergent 0.05%-0.1%, n-octanol 0.02%; the stirring time of the surface coating after the completion of the proportion is not less than 45 minutes, and the stabilization time is not less than 4 hours;

[0017] (2) After the surface coating is dipped, the coating should be leveled and evenly covered on the surface of the wax model, without local accumulation, and then sanded by hand;

[0018] (3) When filling small holes with sand, add ammonium water to harden, and the concentration of ammonia water is between 21% and 25%;

[0019] (4) The air-drying time for applying the re...

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PUM

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Abstract

The invention discloses a processing method for the surface quality of castings. The method comprises the following steps: (1) uniformly painting the surface of a wax pattern with a primary layer coating; (2) filling small holes with sand; (3) painting a strengthening layer coating; (4) placing the wax pattern in a pool; (5) conducting dewaxing. According to the method provided by the invention, the surface of the wax pattern is coated with the primary layer coating, so that the strength of the wax pattern is increased, cleaning is easier, simplicity and convenience are achieved, the labor efficiency is increased, and time is saved.

Description

technical field [0001] The invention belongs to the technical field of casting, in particular to a method for treating the surface quality of castings. Background technique [0002] Casting is one of the main methods of producing parts blanks, and it is a very fast preparation method. Especially for parts of some brittle metals or alloy materials, casting technology is a commonly used processing method. The forming principle is: heat and melt the metal to make it It has fluidity, and then poured into a mold cavity with a certain shape, filled the cavity under the action of gravity or external force, cooled and solidified into castings or parts. [0003] The traditional casting process generally includes the following steps: a. Make a pattern for molding and core making according to the shape of the product; b. Put the pattern into the sand box, fill the sand, compact it, and close the box after the mold is opened; c. The molten liquid metal is poured into the mold cavity in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/04B22C3/00
CPCB22C9/04B22C3/00
Inventor 何拥军何嘉圣何嘉贤赖卫华伍斌华杨学
Owner LIUZHOU JINTE NEW WEAR RESISTANT MATERIAL CO LTD
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