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What is the Machine hour rate of 200 ton injection molding machine?
Machine hour rate of 200 ton machine is 200*1.125= ?
What is difference between injection rate and injection pressure?
The injection rate is the number of injections. The injection pressure is the pressure the injection is under.
What are the advantages of using moulding?
molding process has several advantages over other molding processes. The following is a short list of what you can expect from utilizing Injection Molding as your form of production.Injection molding allows for high production output rates.When producing your product you may use inserts within the mold. You may also use fillers for added strength.Close tolerances on small intricate parts is possible with Injection Molding.More than one material may be used at the same time when utilizing co-Injection Molding.There is typically very little post production work required because the parts usually have a very finished look upon ejection.All scrap may be reground to be reused, therefor there is very little waste.Full automation is possibl
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What is the Machine hour rate of 200 ton injection molding machine?
Machine hour rate of 200 ton machine is 200*1.125= ?
How do you calculate shot capacity for plastic injection molding?
Production rate of injection molding machine depends upon cycle time (total time that machine takes to produce a product in one cycle) and the number of cavities. For calculating cycle time, you must consider time for each phase that machine takes in one cycle. That phases are: Mold closing / clamp Filling Pack and hold Cooling and Recovery (40-60% ) Mold Open Ejection Add time taken by each phase. For example, this time is 15 seconds and the number of cavities are 2. So the production rate is 2 finished product per 15 seconds. You can increase your production by decreasing the cycle time. You can decrease cycle time by following some points: Keep wall thickness to minimum required for your product Ensure your machine is fine-tuned Ensure proper cooling system, injection pressure and injection speed is applied.
What are the important stages of the injection molding process?
The injection molding process of plastic parts mainly includes 4 stages: Filling, holding, pressure, cooling, demolding These 4 stages directly determine the molding quality of the product, and these 4 stages are a complete continuous injection process. Filling stage The filling is the first step in the entire process injection molding cycle, from the time the mold closes to the start of injection molding until the mold cavity is filled to about 95%. In theory, the shorter the filling time, the higher the molding efficiency, but in practice, the molding time or injection speed is restricted by many conditions. High-speed filling When filling at high speed, the shear rate is high, and the viscosity of the molten plastic decreases due to the effect of shear thinning, which reduces the overall flow resistance; the local viscous heating effect will also make the thickness of the solidified layer thinner. Therefore, during the flow control phase, the filling behavior often depends on the volume to be filled. That is to say, in the flow control stage, due to the high-speed filling, the shear thinning effect of the melt is often great, but the cooling effect of the thin wall is not obvious, so the effect of the rate prevails.
Influence of the injection molding process on the quality of injection molded products?
In the molding process of transforming plastic particles into plastic products, plastic is often subjected to high temperatures and pressure and flows under a high shear rate. Different molding conditions and processes will have different effects on the quality of products, and injection molding has four components: plastic raw materials, injection molding machine, injection mold, and plastic injection molding process. If the plastic raw materials are correctly selected, the technical process parameters of the injection molding machine and mold structure are in line with the requirements of injection molding conditions, so the quality of processed products is directly related to the injection molding process. The quality of the product has the internal material quality and appearance quality, the internal material quality is mainly mechanical strength, and the size of the internal stress directly affects the mechanical strength of the product, the main reason for the internal stress is the crystallinity of the product and the orientation of the molecules in plastic molding, etc. The appearance quality of the products is the surface quality of the products, but the warpage and deformation caused by the internal stress will also affect the appearance quality problems. The appearance quality of products includes product shortage, product dent, fusion mark, flying edge, bubble, silver wire, black spot, deformation, crack, delamination and discoloration, etc., all related to injection molding temperature, pressure, flow time, and position. Molding temperature Barrel temperature, plasticizing temperature, nozzle temperature, mold temperature, and plastic drying temperature, etc. Barrel temperature: it is the melt temperature of the plastic. If the barrel temperature is set too high, the viscosity of plastic will be low after melting, and the injection speed will be fast under the same injection pressure and flow rate, and the molded products will be easy to fly, silver, discolored, and brittle. If the barrel temperature is too low, the plastic will be poorly plasticized, the viscosity will be high, the injection speed will be slow under the same injection pressure and flow rate, and the molded products will be easily deficient, with obvious melt marks, unstable size and cold lumps in the products. Nozzle temperature: high nozzle temperature setting, nozzle salivation, resulting in products with cold material wire. Low nozzle temperature causes clogging in the mold casting system. Injection pressure has to be increased to inject plastic, but there are cold material lumps in the instantly molded products. Mold temperature: high mold temperature, injection pressure, and flow rate can be set lower, but under the same pressure and flow rate, the products are easy to fly, warp and deform, and the products are difficult to stick to the mold and eject. Mold temperature is low, in the same injection pressure and flow rate, the products are not enough, bubbles, fusion marks, etc. Plastic drying temperature: various plastics have different drying temperatures. ABS plastic is generally set a drying temperature of 80 ~ 90 ℃, otherwise, it is not easy to dry and evaporate the water and residual solvent, the product is easy to have silver and bubbles, and the strength of the product will also be reduced.
What is difference between injection rate and injection pressure?
The injection rate is the number of injections. The injection pressure is the pressure the injection is under.
What are the Main parameters that affect the injection molding process?
Following parameters affect injection moulding process. 1) nature of material (type of plastic) 2) rate of injection 3) size of the component being moulded 4) efficiency of machine 5) type of cooling method adopted 6) curing time in the mould
How can the injection process be optimized to achieve the desired level of shrinkage?
The injection molding process is complex and requires precise control to achieve the desired level of shrinkage. To optimize the plastic injection molding process, it is important to understand the factors that affect shrinkage. These factors include melt temperature, cooling rate, mold temperature,ure, and gate size. By controlling these variables, it is possible to achieve the desired level of shrinkage. It is also important to use a high-quality release agent to prevent sticking and to ensure consistent surface quality of the finished product. By following these tips, it is possible to optimize the injection molding process and achieve the desired level of shrinkage.
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What are the advantages of using moulding?
molding process has several advantages over other molding processes. The following is a short list of what you can expect from utilizing Injection Molding as your form of production.Injection molding allows for high production output rates.When producing your product you may use inserts within the mold. You may also use fillers for added strength.Close tolerances on small intricate parts is possible with Injection Molding.More than one material may be used at the same time when utilizing co-Injection Molding.There is typically very little post production work required because the parts usually have a very finished look upon ejection.All scrap may be reground to be reused, therefor there is very little waste.Full automation is possibl
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