Plastic Products Jiangling JH625
Summary:
Key words:
Category:
- Description
-
Plastic products are a general term for daily and industrial goods made from plastic as the main raw material. This includes all products made from plastic through processes such as injection molding and vacuum forming. Plastic is a type of synthetic polymer material that has plasticity.
It, along with synthetic rubber and synthetic fibers, forms the three essential synthetic materials in daily life. Specifically, plastic is a material primarily composed of natural or synthetic resins, with various additives added, which can be molded into a certain shape under specific temperature and pressure conditions, and maintains its shape at room temperature.
Plastic products are widely used, and the vast downstream industries provide strong support for the development of China's plastic products industry. The demand in China's plastic products market mainly focuses on agricultural plastic products, packaging plastic products, construction plastic products, and industrial transportation and engineering plastic products.
The production of plastic products generally includes the processes of plastic compounding, forming, machining, joining, finishing, and assembly. The last four processes are carried out after the plastic has been formed into products or semi-products, also known as secondary processing of plastics.
The forming of plastic products is a key link in plastic processing. It involves shaping various forms of plastic (powder, granules, solutions, or dispersions) into the desired products or blanks. There are more than thirty methods of forming. The choice mainly depends on the type of plastic (thermoplastic or thermosetting), the initial form, and the shape and size of the product. Common methods for processing thermoplastic plastics include extrusion, injection molding, calendering, blow molding, and thermoforming, while thermosetting plastics generally use compression molding, transfer molding, and also injection molding. Laminating, compression molding, and thermoforming are methods for shaping plastics in a flat plane. The aforementioned methods of plastic processing can also be used for rubber processing. Additionally, there are casting methods using liquid monomers or polymers as raw materials. Among these methods, extrusion and injection molding are the most commonly used and are also the most basic forming methods.
Machining of plastic products borrows methods from the processing of metals and wood to manufacture plastic products with very precise dimensions or in small quantities, and can also serve as auxiliary processes for forming, such as cutting extruded profiles. Due to the different properties of plastic compared to metal and wood, plastic has poor thermal conductivity, a low coefficient of thermal expansion, and a low elastic modulus. When excessive pressure is applied to fixtures or tools, it is prone to deformation, and during cutting, it can easily melt due to heat and adhere to the tools. Therefore, when machining plastic, the tools and corresponding cutting speeds used must be suitable for the characteristics of plastic. Common machining methods include sawing, shearing, punching, turning, planing, drilling, grinding, polishing, and threading. In addition, plastics can also be cut, drilled, and welded using lasers.
Plastic products are a general term for daily and industrial goods made from plastic as the main raw material. This includes all products made from plastic through processes such as injection molding and vacuum forming. Plastic is a type of synthetic polymer material that has plasticity.
It, along with synthetic rubber and synthetic fibers, forms the three essential synthetic materials in daily life. Specifically, plastic is a material primarily composed of natural or synthetic resins, with various additives added, which can be molded into a certain shape under specific temperature and pressure conditions, and maintains its shape at room temperature.
Plastic products are widely used, and the vast downstream industries provide strong support for the development of China's plastic products industry. The demand in China's plastic products market mainly focuses on agricultural plastic products, packaging plastic products, construction plastic products, and industrial transportation and engineering plastic products.
The production of plastic products generally includes the processes of plastic compounding, forming, machining, joining, finishing, and assembly. The last four processes are carried out after the plastic has been formed into products or semi-products, also known as secondary processing of plastics.
The forming of plastic products is a key link in plastic processing. It involves shaping various forms of plastic (powder, granules, solutions, or dispersions) into the desired products or blanks. There are more than thirty methods of forming. The choice mainly depends on the type of plastic (thermoplastic or thermosetting), the initial form, and the shape and size of the product. Common methods for processing thermoplastic plastics include extrusion, injection molding, calendering, blow molding, and thermoforming, while thermosetting plastics generally use compression molding, transfer molding, and also injection molding. Laminating, compression molding, and thermoforming are methods for shaping plastics in a flat plane. The aforementioned methods of plastic processing can also be used for rubber processing. Additionally, there are casting methods using liquid monomers or polymers as raw materials. Among these methods, extrusion and injection molding are the most commonly used and are also the most basic forming methods.
Machining of plastic products borrows methods from the processing of metals and wood to manufacture plastic products with very precise dimensions or in small quantities, and can also serve as auxiliary processes for forming, such as cutting extruded profiles. Due to the different properties of plastic compared to metal and wood, plastic has poor thermal conductivity, a low coefficient of thermal expansion, and a low elastic modulus. When excessive pressure is applied to fixtures or tools, it is prone to deformation, and during cutting, it can easily melt due to heat and adhere to the tools. Therefore, when machining plastic, the tools and corresponding cutting speeds used must be suitable for the characteristics of plastic. Common machining methods include sawing, shearing, punching, turning, planing, drilling, grinding, polishing, and threading. In addition, plastics can also be cut, drilled, and welded using lasers.
Message inquiry
* Leave your contact information to get a free product quote
When we are processing motorcycle parts mold shells, we often encounter some problems, one of the more common ones being cracking. It is well known that the main cause of cracking is due to stress deformation, which can be mainly divided into residual stress, external stress, and stress deformation caused by the external environment. Therefore, to solve the cracking problem that occurs during the processing of plastic mold shells, we must start by addressing the stress.
High-gloss molds have very strict requirements for product structure. It is well known that the shinier the product, the more sensitive it is to light refraction effects. Any slight surface defect will be quickly noticed. Therefore, how to solve the shrinkage problem is the primary issue for high-gloss products. According to experience statistics, the thickness of the ribs in general products should not exceed 0.6 times the thickness of the main glue position to avoid shrinkage, or in other words, the shrinkage is small and not easily detected, which can be ignored. However, for high-gloss products, such requirements are far from sufficient. The thickness of the product ribs must be reduced to no more than 0.4 times the thickness of the main glue position, and special treatment must be applied to the screw column positions.