Deformation of rotational molding products is a common problem, mainly due to many factors such as temperature control, cooling method, mold design, and raw material properties during the rotational molding process. In order to overcome the deformation of rotomolded products, improvements can be made from the following aspects:

1. Optimize cooling methods

2. Control the demoulding temperature

3. Adjust mold and process parameters

4. Optimize the selection and use of raw materials

5. Improve product design

1. High and low temperature environments

2. Corrosive environment

3. Humid and underwater environments

4. Harsh weather conditions

5. Physical impact and collision

Rotational molding products can have a relatively wide thickness range, but the specific thickness depends on a variety of factors, including material type, product shape, size, application environment, production process, and equipment level.

Generally speaking, rotational molding products can be produced from very thin wall thickness (such as ultra-thin wall products of 0.2 mm) to relatively thick wall thickness (such as within 16 mm), but thick-walled products are more difficult to form, and the rotational molding process is more complex. Suitable for molding 3~10mm plastic products). For example, the wall thickness of some large rotational molded products such as trash cans, machine casings, etc. may range from a few millimeters to more than ten millimeters. For some special applications, such as products requiring higher strength and stability, thicker wall thickness may be required.

In addition, the thickness selection of rotational molded products also needs to consider economy and ease of use. On the premise of ensuring product performance, choosing the appropriate wall thickness can reduce the use of materials, reduce production costs, and improve the market competitiveness of the product.

To sum up, the thickness range that rotomolded products can achieve is flexible, and the specific thickness should be determined according to the specific needs and application scenarios of the product. During the design and production process, multiple factors need to be considered to ensure the best balance of product performance, economy and ease of use.

There are significant differences between forged aluminum molds and cast aluminum molds in rotational molding molds in many aspects. The following is a detailed analysis of the differences between the two:

1. Materials and performance

2. Production process

3. Cost and applicability

4. Maintenance and maintenance

1. Personal protection

2. Equipment inspection and maintenance

3. Operating specifications

4. Environmental control

5. Other matters needing attention

1. Texture effect

2. Texture effect

3. Color effects

4. Functional effects

Advantages

Strong durability:

Good weather resistance:

Strong corrosion resistance:

Easy to clean:

Environmental protection and energy saving:

Diverse choices:

Highly economical:

Features

Closed structure:

Rotational trash cans usually adopt a closed structure to avoid garbage spillage and odor, prevent insects, animals, etc. from being parasitic, and ensure public health and safety and a clean environment.

Mobility:

Some rotomolded trash cans are equipped with rollers or handles to make it easier for users to move and carry them. This is very practical for trash cans that need to be moved or cleaned frequently.

Safety design:

Nestable design:

Main types

Polyethylene (PE)

The most commonly used rotational molding raw materials: Polyethylene accounts for the vast majority of the rotational molding raw material market, especially linear low-density polyethylene (LLDPE) and high-density polyethylene (HDPE).

Features: Good processing performance, heat resistance, weather resistance and high strength. LLDPE has better flexibility and impact resistance, while HDPE has higher rigidity and hardness.

Polypropylene (PP)

Features: Polypropylene has excellent chemical resistance, heat resistance and high mechanical strength. However, its application in the rotational molding process is relatively rare because its processing performance may be slightly inferior compared to PE.

Other polymers

Including polycarbonate, nylon, ABS resin and other synthetic resins. These materials have unique advantages in certain specific applications, such as the high transparency of polycarbonate, the wear resistance of nylon, and the easy processing of ABS resin.

1. Raw material selection

2. Mold design

3. Production process control

4. Detection technology

5. Other factors

1. Classification according to heating methods

2. Classification by type of rotation

3. Classification by arm movement method

4. Classification by number of arms

5. Classification by hot box

6. Other special types

1. Principle of rotomolding mold making

2. Rotational mold material selection

3. Rotational mold making method

4. Rotational mold making steps

5. Advantages of rotational molding

1. Origin and early development

2. Technology development and popularization

3. Global application and maturity

4. Development of China’s Rotational Molding Industry

5. Future Outlook