Plastic Molded Parts

automotive mold

ISO 9001 Procedure for Making Automotive Injection Molds

Klarm Mould

The automotive industry is flourishing with the automotive injection molding at a considerable rate. The automotive injection molding gives the benefits of low costs and better consistency. The automotive injection molding had provided with high volume. The speed and the quality are the main aspects to focus on for the molders. A company which has proper ISO 9001 system is well-managed and the business performance is very good. The ISO 9001 is well recognized all over the world in the automotive business. The product is developed after taking reviews from the team to give the best to the customers.

automotive mold
automotive mold
  1. What is ISO 9001?

The ISO 9001 ensures the quality of the products and the companies should maintain the quality of the ISO 9001 certification. There are many standards in the ISO 9000 group where only ISO 9001 is needed to be certified. For the certification, you need to fulfill the conditions in the sections. There are in total ten sections of the ISO 9001. The sections from four to ten cover the area of quality management. The sections include various things related to the business such as the process, standards of the product and risks in the production. The sections also take a look at the scope of the business and the investors. The revised plan of the company is required for the certification of the ISO 9001.

  1. ISO 9001 Benefits and Goals

The companies are always in search of recognized molders for the supply of the products. With the ISO 9001, the employees should be trained in a specific process and they should be documented lawfully. Many automotive injection molds had processes which were not needed in the production and they were identified. The ISO 9001 standard is effective when there are disputes with the customers. The standard drives the molders to the growth and development of the molders. The software and spreadsheets have made it easy for the option of direct business. The companies with the standardized ISO 9001 certification are known to provide customer satisfaction than the companies who do not have the certification. They are also often observed to have higher profit margins in their businesses because of the constant improvements in the technology.

  1. Risk Identification

The ISO 9001 focuses on the risks for the customers as well as for the molders towards reducing the risk factor. Some of the risks include the injuries to the workers which is taken care of very keenly, the standard focuses on the impacts that the business can cause to the environment. It also covers the factor that the employees should be well-trained for the job. The purchasing of the right raw material is important for the quality of the product which should be taken care of. The company has to ensure that everything is documented and this helps to identify some of the challenges for the company.

The automotive mold china maker is ISO 9001 standardized with high-quality products. The injection mold China company has been manufacturing various parts across the country as well as in the global market. China plastic injection molding is highly trusted by the customers.

The original source of this article is from https://www.injectionmouldchina.com.

plastic injection molded parts

How To Make Precision Plastic Molded Parts

Klarm Mould

Precision Plastic molded parts can be made only by Plastic injection molding. This is the preferred method because injection molding has the advantages of high tolerance precision work.

The following points go into making Precision Plastic molds.

plastic injection molded parts
plastic injection molded parts
  1. Using the proper clamping force

Injection molding machine – also known as presses, consist of a material hopper, an injection ram or plunger, and a heating unit. Plastic is injected into the mold through the sprue orifice. These presses are rated by tonnage which is the calculation of the clamping force the press can exert. This force keeps the mold closed while the molding is going on. By rule of thumb, the force needed is determined by the projected surface area of the part being molded. Tonnage can vary from a few to a few thousand. The nature of the material also determines the clamping force. If the plastic is stiff, more injection pressure and more clamping force is needed to keep the mold closed.  Also, larger parts require greater clamping forces. These points should be kept in mind when molding.

  1. Using the proper material for Molds – or die refers to the tooling used to produce the plastic parts by molding. They are expensive to manufacture and were preferred to be used only in large scale production. They are typically constructed from hardened steel, beryllium-copper alloys or aluminum. Steel though expensive, is more long lasting and its high initial cost will definitely be offset by the number of times it can be used. Pre-hardened steel is used for larger parts molding. The mold is heat treated after machining for longer life.

Aluminum Injection Molds cost much less and are used for mass manufacture of small parts. Aircraft quality aluminum is used for making molds. They offer quicker turnaround times because of their high heat dissipation quality. Since they are not wear resistant, they can be coated with fiberglass reinforced material.

Beryllium Copper also is used for quick heat removal especially where the shear heat is more. Shear heat is the phenomenon of heat trapping in a viscous material like melted plastic when the mechanical energy of the plastic granules when they are injected under high pressure is converted to heat energy.

  1. Using the right Gate

The main enemy of injection molding is stress. The molecules of plastic undergo severe stresses as they are extruded out of the injector into the crevices and corners of the mold to take that shape. They are forced to take sharp corners instead of their natural flow movement. These stresses when the part is cooled get locked into the part and cause warping, cracking, sink marks etc.

Gates are provided at the point of injection to prevent warping. Depending on the shape and size of the part, different types of gates are used.

  1. State of the art Machining

Using the proper machining to achieve very tight tolerances for their clients molded products. Proper initial designing is very important and can be outsourced to experts on a turnkey project basis. State of the art CNC machining, large boring mills, Blanchard grinding capabilities, conventional EDMs all go into making that perfect precision plastic mold.

Mold manufacturers in China have incorporated these and many more features to produce high quality Chinese molds that are in demand the world over at a fraction of the cost at which they are available in western countries.

For more information, please check out https://www.injectionmouldchina.com.