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Tungsten Steel Mold Material Production Method

Views: 2     Author: Site Editor     Publish Time: 2020-09-24      Origin: Site

With the changes in high-speed stamping precision tungsten steel mold materials and the continuous improvement of its application requirements in various environments, traditional high-speed stamping precision tungsten steel mold materials can no longer adapt to the increasingly complex and changeable working environment. So, how should tungsten steel mold materials with better performance in all aspects be produced?


In the prior art, high-speed stamping precision tungsten steel mold materials are mainly YG15, YG20, etc., and these materials are all produced with one specification of WC powder during the production process. Due to its poor oxidation resistance and corrosion resistance, it is easy to cause defects such as corrosion and cracks in online cutting and EDM. On the other hand, at high temperatures, WC grains are easily dissolved in liquid cobalt. And the phenomenon of abnormal growth occurs.


In view of the above-mentioned shortcomings, scientists have designed a new production method of tungsten steel mold material, the steps are as follows:


(1) Weigh the raw materials that meet the following requirements:


(2) After mixing the raw materials weighed in step 1, ball milling, spraying and drying are performed to obtain a mixture;


(3) Use a press to preform and cold isostatically press the mixture obtained in step 2;


(4) Perform pressure sintering and stress relief treatment on the material obtained in step 3 to obtain the required tungsten steel mold material.


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