Preformed Armor Rod of Electricity Power Fitting
During the injection molding process, when the molten plastic meets in the form of multiple strands in the cavity due to the holes in the insert, the areas where the flow rate is discontinuous, and the area where the filling material flow is interrupted, a linear weld seam is produced because it cannot be completely fused. In addition, when the gate injection molding occurs, a weld seam will also be formed, and the strength and other properties of the weld seam are poor. The main reasons are as follows: Pvc Injection,Precision Plastic Injection Mould,Oem Plastic Injection Crate Mould,Plastic Injection Mould Suzhou Dongye Precision Molding Co.,Ltd. , https://www.dongyeinjectionmolding.com
Preformed armor rod
Trade Mark: Goliker
Manufacturing: Hot Forging
Material: carbon steel, alloy steel etc.Â
Size: according to drawing
Standard: DIN, ASTM, BS, JIS, GB, AISI, ANSI, GOST
Heat treatment: to be decided as mechanical property request
Machining: optional
Surface treatment: plain, sand blasting, HDG, zinc plating, Dacromet, Black, Paint, Powder coating
Our main products are container accessories, railway accessories, construction forgings, hardware tools and power fittings.
Goliker has more than 10 engineers and technical staff. There are over 50 skilled forging workers and managers. Production facilities are fully equipped. We have 300 tons of electric screw presses, 400 tons of electric screw presses, 630 tons of electric screw presses, 1,000 tons of electric screw presses, and otherforging equipment and electric treatment furnaces. Other main equipment are a horizontal lathe, CNC lathes, machining device, drilling machines, grinders, cleaning machines, stamping machines etc., to provide customers from forging to final processing services. Goliker can produce and process various forms of forging blanks, finished products and semi-finished products, the annual output over10,000 tons. Friendly relations have been established with a number of large enterprises at home and abroad.
Processing:
The injection pressure and speed are too low, and the barrel temperature and mold temperature are too low, resulting in premature cooling of the molten material entering the mold and the appearance of weld seams.
When the injection pressure and speed are too high, injection will occur and weld seams will appear. The speed should be increased, and the back pressure should be increased to reduce the viscosity of the plastic and increase the density. Plastics should be dry well, recycled materials should be used sparingly, and weld seams may occur if the amount of release agent is too much or the quality is not good. Reduce clamping force and facilitate exhaust.
2. Mould:
If there are too many gates in the same cavity, reduce the gate or set it symmetrically, or set it as close as possible to the weld seam. The exhaust at the weld seam is poor, and an exhaust system should be set up. The sprue is too large, the size of the gating system is improper, and the gate is opened to prevent the melt from flowing around the insert hole, or use as few inserts as possible. If the wall thickness changes too much, or the wall thickness is too thin, the wall thickness of the workpiece should be uniform. If necessary, a fusion well should be opened at the fusion seam to separate the fusion seam from the workpiece.
3. Plastic aspects:
Lubricants and stabilizers should be appropriately added to plastics with poor fluidity or heat sensitivity. Plastic contains a lot of impurities, if necessary, replace the plastic with good quality.