DIR Return Create A Forum - Home
       ---------------------------------------------------------
       weilong
  HTML https://weilong.createaforum.com
       ---------------------------------------------------------
       *****************************************************
   DIR Return to: General Discussion
       *****************************************************
       #Post#: 8--------------------------------------------------
       China Zinc Die Casting Manufacturer Introduce Its Difficulty - E
       jection
       By: weilong Date: September 1, 2020, 10:35 pm
       ---------------------------------------------------------
       In the previous article, we introduced the content of slide
       block manufacturing in zinc die casting die. I believe you have
       gained a lot after reading it, and you have a clear concept of
       zinc die casting die. Today, China Zinc Die Casting Manufacturer
  HTML https://www.chinaweilong.cn/product/zinc-die-casting/
       will
       introduce you another difficulty in zinc die casting
       die-ejection.
       Generally, the thickness of ejector plate and retainer plate of
       die casting machine below 500T is 25mm, and that of ejector
       plate and retainer plate above 500T is 50mm and 30mm. The
       ejection distance is less than 30mm or the simple mold may not
       be provided with a pullback device. The ejector plate should be
       large enough to connect the four ejector rods of the die casting
       machine.
       Size of ejector pin: as large as possible, and the minimum is
       5mm-6mm. If it is not too short, use SKD61 standard ejector pin,
       such as: 5, 6, 8, 10, 12, 16, 20, 25mm. Ejection distance: the
       ejected casting is at least 6mm away from the highest point.
       Unless separately requested. For thin-walled parts, the thimble
       should not be on the surface as far as possible, but should be
       distributed on the rib.
       Top pin hole of cavity: hole with diameter less than 12 mm,
       clearance 0,025/0,05 mm, clearance 0,05/0,075 mm, fitting
       section 25/30mm, and die steel wall thickness between holes at
       least 4mm, as far as possible 10 mm. Important points: the
       ejector pin hole and ejector plate must be kept vertical,
       complicated and accurate. Guide posts and guide sleeves should
       be set, and the ejector pin hole and ejector pin hole should be
       kept in a straight line. After heat treatment of the cavity, the
       ejector pin hole should be processed by wire cutting. The escape
       space between the ejector pin and the ejector pin hole cannot be
       contacted together. The ejector plate is fastened with M12
       screws, and the interval is not more than 150 mm. When the
       ejector plate moves forward, it must not damage the mold and
       cooling water pipe.
       The OEM Aluminum Enclosure also our hot product, you can click
       our website:
  HTML https://www.chinaweilong.cn/
       *****************************************************