How To Properly Use And Repair Aluminum Extrusion Dies The life of aluminum extrusion die has become the main bottleneck in the development of aluminum profile industry in China. The design and manufacturing cost of aluminum extrusion die accounts for about 20% of the total production cost. It is one of the key technologies for…
The Cause Of Swelling Or Bubbling In Injection Molded Products Some plastic parts quickly swell or swell on the back of the metal insert or in a particularly thick part after the mold is demolded. This is because the plastic that is not completely cooled and hardened is caused by the release of gas under…
Analysis Of The Causes Of The Shock Pattern Of Injection Molding Products Rigid plastic parts such as PS form dense ripples on the surface near the gate, centered on the gate, sometimes called a shock pattern. The reason is that when the melt viscosity is too large and the mold is filled in a stagnant…
New Mode Test Steps And Actions 1. Before testing the mold, first check whether the mold is assembled and whether the raw materials are dried. 2. Before the mold change, the mold spray rust inhibitor in the production is to be placed in the mold, replace the mold and return to the position and fill…
The Cause Of Uneven Wall Thickness During The Processing Of Rotomolded Products In the process of rotational molding, it is not easy to process plastic products with sudden wall thickness. The average wall thickness of the products depends mainly on the amount of material to be fed. The uniformity of the mold and the structure…
Solution To Uneven Wall Thickness During Processing Of Rotomolded Products The solution: 1. Fix the rotomolding mold to the appropriate position on the mold base and adjust the balance of the mold base. 2. The rotation speed of the main and auxiliary shafts is kept balanced and the speed is uniform. 3. The heating furnace…
Products Appear Insufficient Melt Glue In The Injection Molding? When such problems occur, it is necessary to observe the movement stroke of the screw of the injection molding machine while injection molding. Pay special attention to the position of the screw when the pressure is completed and when the glue is completed. In the first…
The Importance Of Effective Cutting Speed Since the table feed depends on the speed at a certain cutting speed, if the effective speed is not calculated, the table feed will be calculated incorrectly. If the tool’s nominal diameter value (Dc) is used in calculating the cutting speed, the effective or actual cutting speed is much…
Milling Cutter Positioning The cutting length is affected by the position of the milling cutter. Tool life is often related to the length of cutting that the cutting edge must bear. The milling cutter positioned in the center of the workpiece has a short cutting length. If the milling cutter is offset from the center…
Use Of Down Milling And Up Milling The main recommendation is to use as much milling as possible. When the cutting edge is just cutting, the chip thickness can reach its maximum value in the down-cut milling. In the case of up-cut milling, it is the minimum value. In general, tool life in up-cut milling…