Plastic Injection Molds

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FAQ

The stamping dies at the Angle of 90 degrees, the Angle is big or small how to repair.

That r Angle is on the bend and it's still on the bend. ? On the bend.I hope my answer will help you.

What is a mold, and what is a mold

The television, all the electrical appliances before production should have a model like his model can be made by machine, which is the die! -

What is the design philosophy of the mould?

The domestic development situation of facing the 21st century, the enterprise to adapt to the development of market economy, as the national support industry of the automobile industry will increase production of light, the micro, cars, thus puts forward higher requirements on the precision of the die forgings. In the process of production, improving die life is a complex and comprehensive problem. All forging technology, especially the net net shape and approximate shape processing technology, to a large extent depends on the precision and quality, mould depends on the skill level of the mould. Mould technology is reflected in die design and manufacturing, and die life is related to the use of the process. ? Is of great economic benefit to improve die life, generally in the trial production mold tooling costs accounted for about 25% of the cost of production, and finalize the design production is only 10%.

What is the discharge in the die

Electric discharge machining in modern die manufacturing, and grinding machine. Milling machine. Lathe. Linear cutting etc. Have the same position, and is an indispensable process. It was invented by the Soviet union. Its history can be found in the 1960s, which can be divided into diodes and triode types. Here's how the discharge works: If from macroscopic description: discharge machining principle is through the infinite close to but not contact the positive and negative charged body (that is, the electrode and workpiece), in the role of insulating liquid (spark), the process of transform electric energy into heat energy (instantaneous 10000 degrees), so as to achieve the aim of corrosive processing products molding.

How to open the exhaust in the plastic mould exhaust, should notice what?

The exhaust of plastic mould should be noted Don't be too stressed out Don't overheat the plastic Don't inject too quickly Don't give the piston back too early The weight of the plastic parts should be near the device's rating

What is the hardness of mould steel chromium 12 unquenching?

The CR12 mould steel is widely used for cold making mold steel, with high strength, good hardening and good abrasion resistance, but the impact toughness is poor. Mainly used as under impact load is small, high wear resistance of cold die and punch, cold cutting scissors, drill sets, gauge, wire drawing die, stamping die, thread rolling plate, drawing die and screw thread rolling dies, etc. Cr12 steel belongs to high carbon high chromium ledeburite steel, is widely used cold work die steel. The steel has good hardenability, abrasion resistance, hot workability. Carbide distribution in the steel is good, can be used to make complex shape, under heavy working conditions of all kinds of cold work mould. Such as cold die punch, thread rolling dies, wire drawing die, die, powder metallurgy die, woodworking cutting tools, cold cutting scissors drill tool and gauge set. CR12 steel hardness in the return of the state for 269 ~ 217 hb, a maximum of 62 HRC after quenching, according to different purposes, can choose a different hardness and reasonable hardness range should be around 58-62 HRC.

What do you mean by plastic mold injection molding? What's the use?

The assurance means a fixed pressure on the material in the mold. Because the plastic in the cooling process has the effect of heat bilges cold shrink, especially larger plastic shrinkage, heat bilges cold shrink is very obvious, so when we give the material after a fixed pressure, plastic shrinkage during the cooling process, the mold melt pressure began to decline, with the holding role, and the hydraulic system will automatically forward pressure, progress in the back of the material, added the contraction of the melt front, thus forming prevent products caused by shrinkage deformation. Adjust the pressure of pressure and the time of holding pressure, adjust the product defects such as the flying side, fuse connection and shrinkage mark.

The role of the die positioning ring

The function of the die positioning ring is to make the injection molding machine on the die, to ensure that the sprue of the die is in line with the injection molding machine nozzle position level and complete coincidence