Author: wudejian
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1.5mm stainless steel drawing dies are made of Cr12MoV, but they become worn out after just a few hundred draws. What type of die steel should be used instead? Handwritten notes 067
Using the wrong die steel is common, but if the die steel is suitable for the mold, there will be no issues with the mold. I just received a phone consultation from a netizen. They are using Cr12MoV for 1.5-thick stainless steel drawing, but the steel gets scratched after drawing a few hundred pieces. The…
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In the live streaming room, not only do I receive questions from unfamiliar customers, but I also chat with regular customers about everyday matters. Handwritten notes 066
On the evening of Friday, February 6th, 2026, I conducted a live broadcast for one hour, marking my 286th live broadcast. The exposure of this live broadcast room was 13,000, with 1,088 viewers. The average viewing duration per person was 1.17 minutes, the average number of online users was 21, and the highest number of…
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To punch 0.2mm pure nickel strip, what die steel should be used for the punch and blade? Article 574
Netizen Xiaolong in the live streaming room asked: What die steel should be used to make the punch and blade for stamping 0.2mm pure nickel strip? Nickel material may seem soft, but it is actually very ductile. When punching and cutting, it is prone to breaking off in small pieces, which means your punch is prone…
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What kind of die steel is best for stretching 1mm 304 stainless steel?
In the 285th live broadcast room, a netizen asked, what kind of die steel should be used to make 1mm thick 304 stainless steel stretched to 4mm high? Stainless steel is easy to draw when stretched. It is necessary to choose a non-stick mold material with good smelting quality and no microscopic cracks invisible to…
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Which die steel has toughness comparable to VIKING and a higher hardness than VIKING? Article 573
In the 264th live broadcast room, a netizen asked: Is there any die steel with toughness similar to VIKING but higher hardness than VIKING, suitable for making injection molds for connectors? VIKING is a cold work die steel of the chromium Cr8 series, with a carbon C content of 0.5%. Among cold work die steels, it…
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For plastic molds made of nylon and 30% glass fiber, 718 die steel is prone to burring, so each product needs to be deburred.
Mr. Hu said that for reinforced plastic molds made of nylon and 30% glass fiber, using 718 quenched and hardened die steel now often results in burrs. Nowadays, every product has to be deburred, which is quite troublesome. The reinforced plastic made of nylon and 30% glass fiber cannot be quenched with 718, which is…
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The data for 10 consecutive live broadcasts has met the standards, which is a very perfect implication.
On the evening of Wednesday, February 4th, 2026, I conducted a live broadcast for one hour, marking my 285th live broadcast. The number of viewers in this live broadcast room reached 17,000, with 1,632 spectators. The average viewing duration per person was 0.95 minutes, and the average number of online users was 26, with a…
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Compared to the orders in the afternoon, those in the morning are like two worlds apart, one hot and one cold
I was quite idle this morning and even posted a few English blogs, but I started to get busy in the afternoon due to a surge in orders from regular customers. Some are for stocking up for the Spring Festival, which need to be shipped before the New Year. Others are for stocking up for…
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Blogs are useful. You should manage your own blog well and don’t let it fall into disuse.
I used the newly launched English blog right away. I just communicated with a user who spoke English, using Baidu Translation throughout. I couldn’t really say anything else, so I sent him a blog to read. Although the blog has just been launched and there isn’t much content yet, at least there’s a founder’s column…
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Don’t take advantage of people’s money
I just blocked Mr. Zhang on WeChat because I really don’t have time to deal with him. Starting from 2024, we will need to inquire about the working conditions every two to three months. When asking about the working conditions, just ask about the working conditions. Every time you ask for a quote, and then…