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Shenzhen Runpeng Precision Hardware Co.,Ltd

The contact:Susan Liao

Mobile:86-18925258235

Phone:86-755-29886925 

Fax:86-755-29886926

E-mail:sales@szrunpeng.cn

Web:www.sz-runpeng.com

Add:Building 69-70, 4th Industrial Zone, Mashantou, Gongming Town,Shenzhen,China.


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Die Casting Shot After The Surface Of The Black Situation How To Do?

  die casting shot after the surface of the black situation how to do?

  In the cast die casting out, in order to improve the die casting surface finish, reduce the fatigue of the die casting to extend the die casting life, usually die castings shot blasting, but after the shot blasting, the die casting will appear black situation, that encountered How should this situation be resolved?

  die casting shot blasting after the performance of black:

  die casting shot peening, the overall surface of the black or local obvious black trace, black spots, and some can be discarded, and some have been immersed in the die casting matrix, the area and location is not fixed.

  Cause Analysis:

  1, die-die casting process with the previous shot before the existence of defects:

  (1), die-die casting use too much black oil;

  (2), punching oil when punching;

  (3), die-die casting paint splashing;

  2, the product is placed too long or the temperature is wet, surface corrosion, moldy or dust serious.

  3, shot blasting machine dust device failure, steel balls contain more dust.

  4, the operator did not require the requirements of wearing gloves, hand contact with the shot after the die casting surface, resulting in fingerprints.

  5, shot peening after a long time, the surface falls with dust or splashing water, oil, environmental moisture oxidation.

  Corresponding measures:

  1, the defect is not covered with the entire die casting surface, by the die-die casting process to strengthen control and management.

  (1), is black oil, color black;

  (2), is the punch oil, dark red color;

  (3), is the color of the paint, the color of different die castings surface;

  2, shot peening, the surface traces of shallow, can not be removed, because it has been immersed in the die casting matrix. Strengthen the management of product placement, should not be too long. If you want to place for a long time, must be covered and protected, and placed in the appropriate environment;

  3, the entire die casting surface color black, dark. Restore dust or replace new steel balls;

  4, the operator must be required to operate the instructions, must wear gloves.

  5, shot peening as soon as possible the final inspection, packing and storage, such as the need for a period of time must be strictly protected.


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Contact us

Shenzhen Runpeng Precision Hardware Co.,Ltd

The contact:Susan Liao

Mobile:86-18925258235

Phone:86-755-29886925 

Fax:86-755-29886926

E-mail:sales@szrunpeng.cn

Web:www.sz-runpeng.com

Add:Building 69-70, 4th Industrial Zone, Mashantou, Gongming Town,Shenzhen,China.


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