China Vacuum Forming

Cnmoulding is vacuum forming manufacturer

we also make vacuum forming products, to save cost reason. because some big and simple structure parts will use thermoforming technology. Today we introduce how to make vacuum forming mold.

Four steps to complete your vacuum forming product production

Vacuum forming technology is a very popular technology to complement injection molding perfectly. Need production company to master proficiency
Expertise to achieve project implementation. Through 20 years of technical accumulation of foreign trade orders, we summarize the following four steps
. It ensures that plastic products can be shaped for any size, shape or precision requirement.

1. Mold

First, complete the shape of a mold according to the drawing. This mold material is usually made of aluminum in China, and before

The company uses brass materials and is now phased out. The technical point is that the mold should have a draft angle. This will allow the product is completely ejected from the plastic in vacuum forming.

2 Really unprecedented preparation

The plastic sheet that needs to be formed is placed above the mold and tightened. The materials usually used in forming plates are PVC, PP, and ABS.

Then the heater above the plastic sheet begins to heat up. Fully heat the plastic sheet and make sure it is fully molded conveniently.

3. Start vacuum forming molding

After a few minutes, the plastic reached the set temperature to allow molding. The mold cavity moves up and into the plastic.
Turn on the real unprecedented switch. All air in the cavity is discharged from the mold. Make sure the plastic forms the machining shape of the mold.
A vacuum plastic product from an unprecedented extraction

4. Completion of the cooling

Remove the plastic product from the mold cavity. Trim the excess part of the forming plate and cool it fully. Not all designs are real
Air forming completed. Some can not hole, slot and other shapes, we through the laser machine after processing completed.

Vacuum Forming Advantages and Disadvantages

Advantages

• Because the shape is simple, use aluminum material, mold production time is short, usually 7-10 days to complete.
• Suitable for small batch and large size parts
• Cost reduction using MDF, high-density foam and epoxy.

Disadvantages

• Product bottom thick, stretch sidewall thickness is thin. very deep part can not be molded.
• Design complex products can not use this technology
• Slow production, can not be used in mass production
• The high cost of post-processing, no guarantee of precision of critical dimensions

Vacuum forming to make cases

Vacuum thermoforming is a well-used process for making plastic shaped into something useful, like a game controller or console case. There are thousands of things used every day which use a commercial version of vacuum forming, like injection molding for example. China vacuum forming doesn’t have access to such equipment. so the best results attainable for cheap, short-run cases is vacuum forming.

How China company vacuum forming

The basic principle of vacuum forming is to make a mold, place a hot plastic sheet on top. A vacuum sucks the plastic sheet over the mold creating a final shape. It is very easy to make one, very cheaply too. In the home. The main skill is making a mold properly and to the right dimensions. Also, making the design so that the final shape is strong and not liable to cave or flex.

How vacuum forming mold making

Completed by CNC machining CAM programming software out the program in accordance with the drawings or a model provided by.  then manually Others, such as porosity. Upside-down position making and mold can smooth polished. There are special requirements needed for spraying Teflon or sandblasting.

Use ZL401, 6061 and 7075 aluminum material made of such mold precision high and the production of the product contour. the angle more beautiful, and very high durability, the price is also the first of four types of mold. Mainly applicable to electronic appearance and size requirements of the gifts, toys, medicine, stationery and other products.

Alloy aluminum mold is the preferred mold plastic production of large quantities and high demand. Relative to the plaster mold, copper mold, plastic mold durable Festival saving, high production efficiency, and low scrap rate, etc.