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What is relation of shot capacity and shot weight in plastics injection molding?
Shot Capacity : The maximum weight of molten resin that the injection molding machine can push out with one forward stroke of the screw during injection molding operation. Shot weight : The weight of the material injected into the mold in a single shot by an injection molding machine. (Weight of the molded part(s) + Weight of the runner + gate and the sprue)
What is injection molding?
Injection molding is a commonly used manufacturing process for the fabrication of plastic parts. the injection molding process need injection mold and injection machine.--------------------------------------------------------Injection molding is a manufacturing process for producing parts from both thermoplastic and thermosetting plastic materials. Material is fed into a heated barrel, mixed, and forced into a mold cavity where it cools and hardens to the configuration of the mold cavity.After a product is designed, usually by an industrial designer or an engineer, molds are made by a moldmaker (or toolmaker) from metal, usually either steel or aluminium, and precision-machined to form the features of the desired part. Injection molding is widely used for manufacturing a variety of parts, from the smallest component to entire body panels of cars.the following is a photo of the injection molding process:http://www.vulcanmold.com/article/Plastic-Injection-molding-process.htmlA Hollow mould is made from steel in several parts. when the mould is all together the hollow within it is the same shape as the object you wish to produce. The mould is water cooled to keep its temperature under control. molten plastic is forced into the mold at high pressure. it is left to cool for a specified period of time, then the mold is pulled apart in such a way that the object falls out of the mould and the whole thing starts all over.
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 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 Types of ejection systems are used in injection molding?
sleeve ejection,blade ejection,srriper plate ejection,pin ejection,valve ejection
Is injection molding machine just the same as dvdcd replicating machine?
no
When was the first injection molding machine patented?
The first injection molding machine patented in the year 1872. This machine was relatively simple compared to machines used this very days, but was very complicated in 1872.
What is the process used in injection molding?
Go to wikipedia and look up injection molding. You can also try www.mozdex.com/injection-molding-basics. Injection molding involves first having an injection molding machine. Second you must choose what shape you want to create, and have it drawn by a mechanical engineer. Then you must have the dies made at a machine shop to your specifications. Third you must select the type of plastic you want to make it out of, and set up your injection molder accordingly, and set it to run.
What is an injection molding machine made from?
It is made from different types of metal
What is the Injection Unit is responsible for injection molding machine?
It is responsible for material charging and injection. It helps inject the material into the mould.
How does ceramic injection molding work?
Ceramic injection molding is similar to plastic molding. It uses a machine that heats ceramic at a very high temperature. It will melt it than it will heat it to make it stay.
In case of injection molding process reduction of cycle time is depend on mold or machine?
machine
What is relation of shot capacity and shot weight in plastics injection molding?
Shot Capacity : The maximum weight of molten resin that the injection molding machine can push out with one forward stroke of the screw during injection molding operation. Shot weight : The weight of the material injected into the mold in a single shot by an injection molding machine. (Weight of the molded part(s) + Weight of the runner + gate and the sprue)
What is the Process of making plastic articles by injection molding machine?
extrusion moulding
What is the Machine hour rate of 200 ton injection molding machine?
Machine hour rate of 200 ton machine is 200*1.125= ?
Give me introduction about plastic injection molding machine?
work by lots of combine materials
injection molding screw barrel?
injection molding screw barrel
