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PC Injection molding process and screw selection
PC Injection Molding Process and Screw Selection Posted on : July 21 , 2022 By GREFEE The PC material has high strength, good transparency, low molding shrinkage rate, and high process ability, which is widely used in electronic devices and industrial parts fields. PC materials has excellent features with high transparency and impact rigidity, and deformation resistance, wide using temperature range. PC injection molding products are being used a broad range of products since it provides remarkable aesthetic value and…
Precision injection molding solutions
Precision injection molding solutions Posted on : Aug 15 , 2022 By GREFEE What is precision injection molding? The high precision injection molding refers to an injection molding method of which the dimensional repetition accuracy of the injection molding parts is very high, resulting in hard to achieve the requirements with general injection molding machine and ordinary injection molding processing. What distinguishes the high precision injection molding from the ordinary injection molding is that the technology of using precision plastic parts…
Issues in Processing Large Scale Injection Molding Mold
Issues in Processing Large Scale Injection Molding Mold Posted on : July 25 , 2022 By GREFEE Nowadays, the demand for large-scale injection molding mold is increasing. From the flat screen TV to car dashboard, the designer always seeking the improvements in the dimension and complexity of the mold making. However, not every manufacturer can make large scale injection molding mold as it includes many difficulties and is hard to process. Issues of large scale injection molding mold The shapes…
Process and Characteristics of Precision Mold Processing
Process and Characteristics of Precision Mold Processing Posted on : July 27 , 2022 By GREFEE If you are looking for high precision injection molding, you need a set of the high precision mold. The high precision mold suppliers generally can meet your processing requirements. Before this, you need to communicate about the project to provide the drawing to the suppliers. A set of mold is composed of multiple components and the quality is directly related to the mold quality. The…
How design plays an effect role in improving the quality of zinc alloy casting
How Design Plays an Effect Role in Improving the Quality of Zinc Alloy Casting Posted on : July 11 , 2022 By GREFEE Zinc alloy die casting molds are important process equipments in the zinc alloy die casting production. During the production, the liquid metal solidified in the die casting molds and finally being formed into the zinc alloy die casting parts. Its shapes, dimensions, quality and efficiency are all related to the die casting molds. Thus, a proper design is…
5-axis CNC machining — Lamborghini grille
5-axis CNC machining — Lamborghini grille Posted on : Aug 29， 2022 By GREFEE Lamborghini is one of the most luxury sports cars. It was a great honor for GREFEE having an opportunity to work with the R&D team to produce the grille for its Urus model, which was 150 sets. The team from Lamborghini required the main body must be produced by 5-axis CNC machining, and the bottom snap was bonded by disassembly. Considering the higher requirements on the surface…
Production mode and surface treatment process of aluminum Radiator
Production Mode and Surface Treatment Process of Aluminum Radiator Posted on : July 14 , 2022 By GREFEE Production mode and surface treatment process of aluminum heat sink There are mainly three ways to produce aluminum alloy heat sink, including the extrusion process, die casting process, CNC machining Introduction to extrusion production process of aluminum profile radiator: 1. For the aluminum extrusion mold with high density teeth and large tongue ratio, the first aluminum rod must be a 150-200mm short…
What do you require to check about the aluminum alloy casting？
What do you Require to check about the Aluminum Alloy Casting？ Posted on : July 20 , 2022 By GREFEE 1.Visual inspection Processing an analysis about the surface quality of the aluminum alloy castings visually to see whether there is pattern, flow mark, depression and shrinkage, deformation, cold shut, underfeeding, discoloration, or spots. Also, the inspection can be carried out with the magnifier with being magnified more than 5 times. 2. Dimension inspection A .Use vernier caliper to check the wall thickness and…
Four Main Factors of High Quality Zinc Alloy Die Casting
Four Main Factors of High Quality Zinc Alloy Die Casting Posted on : July 12, 2022 By GREFEE Die casting products is widely used in many industries. Most alloys are suitable for die casting. The physical and mechanical property of different alloys is heterogeneous, which provides convenience for the design of products. The most common die casting includes zinc die casting and aluminum die casting. Other than that is magnesium, zinc-aluminum, copper, tin and lead alloys. Zinc alloy die casting has…
Zinc Alloy Electroplating Processing
Zinc Alloy Electroplating Processing Posted on : July 22 , 2022 By GREFEE Jump to Section >>Electroplating process >>Characteristics of zinc ally electroplating >>Common issues summary Electroplating is a common treatment method for metal surface. Metal plating also needs professional processing process to make the surface beautiful and qualified. Common parts that are used for plating on zinc alloy, plating on aluminum alloy, plating on magnesium alloy, plating on copper alloy, etc., have gold plating, silver plating, zinc plating, nickel plating, chrome plating, etc. Electroplating…
How to Fix the Shrinkage Deformation
How to Fix the Shrinkage Deformation of Injection Molded Parts Posted on : July 30 , 2022 By GREFEE It is inevitable to meet defects like warping when designing injection molded parts. So how to fix the warping? First, we must understand what causes the injection molding parts warping? After knowing the fundamental of the basics, we can start from four aspects, which are plastic materials, plastic parts design, mold structure and molding process. Certainly, the prevention is more important…
Common Issues in the Hard Anodizing
Common Issues in the Hard Anodizing Posted on : July 28, 2022 By GREFEE Common Issues in the Hard Anodizing Hard anodizing is a kind of hard anodized with higher requirements for the wear resistance of the oxide film of the workpiece, which is categorized into: (1) sulfuric acid hard anodizing method; (2) oxalic acid hard anodizing (3) mixed acid hard anodizing. Without specified, it often refers to sulfuric acid hard anodizing. hard anodizing principles 1. Cathodic reaction：4H+ +4e=2H2↑ 2. Anode reaction: 4OH －－…