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Surface treatment method of stamping die

A stamping die and surface treatment technology, applied in the field of die treatment, can solve the problems of high stamping working temperature, stamping die wear, oil contamination, etc., and achieve the effects of improving surface hardness, improving service life, and improving activity.

Inactive Publication Date: 2018-04-20
马鞍山东维铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the generally large production batches of stamping parts and the high working temperature of stamping, the surface of the stamping die often suffers from wear, oxidation, or oil contamination, which leads to the quality and appearance of the stamped workpieces not up to standard. It is of great significance to effectively treat the surface to reduce the scrap rate of the mold. The surface wear resistance of the existing stamping mold is average. After working for a long time, the precision of the product will be greatly reduced.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A surface treatment method for a stamping die, comprising the following steps:

[0019] (1) Put the steel ball into a resistance furnace and heat it to 820°C, keep it warm for 30 minutes, then adjust the temperature to 400°C, keep it warm for 15 minutes, then cool down to room temperature with the furnace, then put the steel ball into the activation solution to soak for 2 hours, then take it out , using deionized water to wash to neutrality, and drying to constant weight to obtain an activated steel bullet; the activation solution is made of the following components in parts by weight: phosphoric acid 5, phosphate 8, sodium molybdate 3, nitric acid 2, Nano silicon dioxide 1, deionized water 80;

[0020] (2) Soak the stamping die in cleaning solution for 10 minutes, and then use plasma discharge to treat the surface of the stamping die for 5 minutes;

[0021] (3) The activated steel bullet obtained in step (1) is uniformly shot peened on the surface of the stamping die ...

Embodiment 2

[0030] A surface treatment method for a stamping die, comprising the following steps:

[0031] (1) Put the steel ball into a resistance furnace and heat it to 850°C, keep it warm for 30 minutes, then adjust the temperature to 400°C, keep it warm for 15 minutes, then cool down to room temperature with the furnace, then put the steel ball into the activation solution for 2 hours, then take it out , using deionized water to wash to neutrality, and drying to constant weight to obtain an activated steel bullet; the activation solution is made of the following components in parts by weight: phosphoric acid 5, phosphate 8, sodium molybdate 3, nitric acid 2, Nano silicon dioxide 1, deionized water 80;

[0032] (2) Soak the stamping die in cleaning solution for 10 minutes, and then use plasma discharge to treat the surface of the stamping die for 10 minutes;

[0033] (3) The activated steel bullet obtained in step (1) is uniformly shot peened on the surface of the stamping die for 30-...

Embodiment 3

[0042] A surface treatment method for a stamping die, comprising the following steps:

[0043] (1) Put the steel ball into a resistance furnace and heat it to 830°C, keep it warm for 30 minutes, then adjust the temperature to 400°C, keep it warm for 15 minutes, then cool down to room temperature with the furnace, then put the steel ball into the activation solution to soak for 2 hours, then take it out , using deionized water to wash to neutrality, and drying to constant weight to obtain an activated steel bullet; the activation solution is made of the following components in parts by weight: phosphoric acid 5, phosphate 8, sodium molybdate 3, nitric acid 2, Nano silicon dioxide 1, deionized water 80;

[0044] (2) Soak the stamping die in cleaning solution for 10 minutes, and then use plasma discharge to treat the surface of the stamping die for 8 minutes;

[0045] (3) The activated steel bullet obtained in step (1) is uniformly shot peened on the surface of the stamping die ...

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PUM

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Abstract

The invention discloses a surface treatment method of a stamping die, and relates to the technical field of die treatment. The surface treatment method comprises the following steps that (1) treatmentis conducted on a steel bomb; (2) plasma discharging treatment is conducted; (3) shot blasting treatment is conducted; and (4) polishing is conducted. According to the surface treatment method of thestamping die, the surface hardness of the steel bomb can be effectively improved by conducting treatment on the steel bomb, the activeness of particles on the surface of the stamping die can be effectively improved by adopting plasma discharging to conduct treatment on the stamping die so that a layer of compact hardened layer can be obtained on the surface when the treated stamping die is subjected to shot blasting treatment, the stamping die has high abrasion and corrosion resistance and heat fatigue resistance and adhesion resistance, and the service life of the stamping die is greatly prolonged.

Description

technical field [0001] The invention belongs to the technical field of mold treatment, and in particular relates to a surface treatment method of a stamping mold. Background technique [0002] Stamping die is a special process equipment that applies pressure to the material to cause separation or plastic deformation to obtain the required parts or products. Due to the generally large production batches of stamping parts and the high working temperature of stamping, the surface of the stamping die often suffers from wear, oxidation, or oil contamination, which leads to the quality and appearance of the stamped workpieces not up to standard. It is of great significance to effectively treat the surface to reduce the scrap rate of the mold. The surface wear resistance of the existing stamping mold is average. After working for a long time, the precision of the product will be greatly reduced. Contents of the invention [0003] The object of the present invention is to provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/20
CPCB21D37/20
Inventor 汪民
Owner 马鞍山东维铝业有限公司
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