Stainless steel casting purification process

A stainless steel and process technology, applied in the field of stainless steel casting purification process, can solve the problems of low product market competitiveness, uneven quality, low production efficiency, etc., to avoid repetitive procedures, simple purification process, and improve work efficiency Effect

Inactive Publication Date: 2016-06-08
CHONGQING JIEWEI DIE & MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the purification process of stainless steel castings is relatively complicated, and there is no unified specification and standard. The quality of the purified products is uneven. Many repeated processes also make the production efficiency low, increase the labor burden of workers, and at the same time make the products more competitive in the market. not tall
For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences

Method used

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Embodiment Construction

[0012] The technical solution disclosed by the present invention is a stainless steel casting purification process, which is characterized in that it includes the following steps: 1) Shot blasting: using a Q326 crawler shot blasting machine, using 0.3mm stainless steel shots to remove residual sand and scale;

[0013] 2) Rinse: Hanging basket and water gun, use tap water;

[0014] 3) Pickling: In the pickling tank, the pickling liquid formula is 10% nitric acid, 5% hydrofluoric acid, 85% water, acidification time is 30 to 60 minutes, and the temperature is 40 to 60 degrees;

[0015] 4) Rinse: use hanging baskets and water guns and hot water at 40°C to 60°C;

[0016] 5) Shot blasting: Q326 crawler shot blasting machine and 0.3mm stainless steel shot are used;

[0017] 6) Rinsing: use hanging baskets, water guns and tap water;

[0018] 7) Purification: Use purified water to clean in the purification tank, the formula of the purification solution: 10% nitric acid, 5% hydrofluor...

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PUM

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Abstract

The invention discloses a stainless steel casting purification process. The stainless steel casting purification process is characterized by comprising the following steps: 1) shot blasting: a Q326 track type shot blasting machine is adopted; a 0.3 mm stainless steel shot is used; and redundant sand and scales are removed; 2) flushing: a lifting basket, a water gun and running water are used; 3) acid washing: in an acid washing tank, acid washing liquid is prepared by 10% of nitric acid, 5% of hydrofluoric acid and 85% of water; the acidifying time is 30-60 minutes; and the temperature is 40-60 DEG C; 4) flushing: the lifting basket, the water gun and hot water of 40-60 DEG C are adopted; 5) shot blasting: the Q326 track type shot blasting machine is adopted; and the 0.3 mm stainless steel shot is used; 6) flushing: the lifting basket, the water gun and the running water are used; and 7) purification: purification water is used in a purification tank for cleaning; purification liquid is prepared by 10% of nitric acid, 5% of hydrofluoric acid and 85% of water; the acidifying time is 15-30 minutes; and the temperature is 40-60 DEG C. The purification process is simple, saves multiple repeated procedures, improves the working efficiency, and is excellent in purification effect.

Description

technical field [0001] The invention relates to a stainless steel casting purification process. Background technique [0002] At present, the purification process of stainless steel castings is relatively complicated, and there is no unified specification and standard. The quality of purified products is uneven. Many repeated processes also make the production efficiency low, increase the labor burden of workers, and at the same time make the products more competitive in the market. not tall. For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences. Contents of the invention [0003] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a purification process for stainless steel castings, which is simple and eliminates many repetitive procedures and improves w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/08B24C1/10
Inventor 曾尚怀
Owner CHONGQING JIEWEI DIE & MOLD
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