Author: wudejian

During the Spring Festival, not only did I interrupt the promotion, but I also interrupted the live broadcast. Since the 287th live broadcast on February 9th, I have been suspended for another 23 days. After the New Year, the Yuanxiao (Filled round balls made of glutinous rice-flour for Lantern Festival) has passed, and there is…

A netizen left a message below the video asking, what material is good for 2.0 copper stretching? There will be no subtle vertical lines on the appearance. Vertical lines on the appearance of stretched parts are usually caused by adhesive wear of the adhesive material, which is generally due to the presence of microscopic cracks…

Mr. Chen’s plastic mold core is a thin sheet, which is 6mm high but only 6mm thick. Now using 718H mold steel, it is easy to deform. It deforms after making thousands of pieces, and the parts are scrapped too quickly. What mold steel should be used to solve this problem? A component, which is…

I rarely recommend M390 powder stainless steel due to its high cost, but it is still necessary to use it for some mold conditions. M390 has a carbon C content of 1.9%, chromium Cr content of 20%, vanadium V content of 4.0%, and a hardness of 60-61HRC. It is a stainless steel with excellent wear…

Looking through the photo album, I saw this live broadcast photo in Jinggangshan. Netizens left comments saying that 8566 is safe and bold to use. I have been using it in Laowu for several years, and the customer’s place has solved many problems, with stable business. I am very happy to see the positive feedback…

Contacting a customer for 8 years, finally placing an order for 8566, from 2017 to 2026, it’s not easy! Mr. Fang, who just placed an order for 8566, said: I contacted you in 2017, but the boss said the price was too high, so there was no follow-up. There is a mold weighing over 300…

The normal growth rate for a listed company is 10% pre tax or 6-7% post tax profit. A company is a long-distance runner, not a sprinter. By examining the income statement, you will find that the company’s revenue and net profit have been steadily increasing over the past 10 years. An article in the Financial…

Question from a netizen in the 286th live broadcast room: What kind of mold material is used to punch the 4.2mm hole with 7mm thick 10th steel? Punch a 4.2 hole on a 7mm thick 10 gauge steel, which has a punching aperture smaller than the plate thickness and a punching ratio of less than…

A netizen asked me after quoting, is the non stick 8503 die steel imported? Mr. Wan is a reinforced plastic injection molded with AP66+GF30%. The product is very simple, currently 2344, with a hardness of HRC50. The mold production will produce sharp edges after a long time, and he wants to use die steel with…