Near the end of the year, Long Hao's pace in expanding into overseas markets continued to accelerate. After November 31st, 2014, he participated in the APPEX Auto Expo in the United States. From November 29, 2014 to December 1, 2014, Long Hao Lubricants, Kelansu, and 3E all series products. He went to Iran, a large Middle East country, to participate in the 9th International Automobile Parts and Accessories Fair in Tehran. The Tehran International Auto Show is an annual event of the Iranian automobile industry. It is only open to professional audiences. As the leading automobile production country in the Middle East, this Iranian exhibition has attracted Germany, France, Britain, Italy, Sweden, the Netherlands, Brazil, and South Africa. Hundreds of international auto parts companies and a number of Iranian local companies from more than a dozen countries and regions including Japan, South Korea, and China are exhibiting. Merchants who come to the China Pavilion for trade negotiations are also very enthusiastic. In this exhibition, Long Hao Supreme SN steam engine oil, pressure CJ-4 oil pressure enhanced diesel engine oil, Mount St. 8000SJ motorcycle oil, DOT5.1 synthetic brake fluid, internal engine flushing oil, tooth heavy load The company's 16 products, including gear oil, oil wheel grease, special anti-wear hydraulic oil for steel shield construction machinery, tire mates, 3E water tank cleaners, and nozzle cleaning and maintenance products, have been launched by customers. Active inquiry. 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.sjinjectionmolding.com
Long Hao brings three exciting series of products to the 9th Iran International Auto Parts Exhibition
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.