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1. Life span of rotomolded products for outdoor use

The service life of rotomolded products used outdoors is affected by many factors, including but not limited to material type, light intensity, oxidation degree, usage environment, and maintenance conditions. Generally speaking, due to their good weather resistance and anti-aging capabilities, rotational molded products can have a long service life in outdoor environments, usually around 5-10 years. However, this time range is not absolute and needs to be comprehensively considered based on factors such as product material, design, and usage conditions.

2. Characteristics of anti-UV materials

Anti-UV materials refer to materials that have the ability to resist ultraviolet radiation. This material can maintain good performance and appearance stability in outdoor environments. The characteristics of rotational molding anti-UV materials mainly include the following aspects:

Excellent anti-UV performance: Anti-UV materials can effectively absorb or reflect ultraviolet radiation, reducing ultraviolet damage to materials, thereby extending the service life of the product.

Good weather resistance: In addition to anti-UV properties, anti-UV materials usually have good anti-oxidation and anti-aging capabilities, and can maintain stable performance and appearance in outdoor environments for a long time.

Wide range of applications: Because anti-UV materials have the above-mentioned excellent properties, they are widely used in outdoor furniture, awnings, billboards, toys and other products that require long-term exposure to sunlight.

When maintaining rotational molding molds, you should pay attention to the following key details to ensure the long-term performance of the mold and product quality:

1. Daily observation and inspection

Regular inspection: Regularly observe the surface condition of the rotational mold and check for signs of scratches, dents, peeling, cracks, etc. Once small bad spots are found on the surface of the mold cavity, they should be repaired in time to prevent the problem from expanding.

Detailed inspection: Check whether there is excess waste accumulated around the flange of the mold, and clean it up in time to ensure the sealing of the mold. Avoid using rigid tools such as steel knives when cleaning to avoid damaging the parting surface of the flange.

2. Correct use and operation

Avoid rough operations: When sticking the product to the mold, do not use hard objects such as sticks to pry, especially iron rods, to avoid damaging the mold. For Teflon-coated molds, once a small piece peels off, the entire mold needs to be shoveled off and re-sprayed, causing unnecessary trouble and delay. Flexible and soft demoulding methods should be used.

Mold closing and opening: When closing the rotomolding tooling mold, the upper and lower molds must not be misaligned or scratched. When opening the mold to take out the product, you must also operate gently to avoid brutal behavior.

Correct installation: When installing the mold on the machine, check the fixing screws twice to ensure that the mold is stable and does not fall off.

3. Environment and storage

Dry and ventilated: The mold should be placed in a dry and ventilated place to prevent water vapor from entering and affecting production and product quality. At the same time, the place where it is placed should be flat and well-loaded. Check the mold frame for cracks and damage. The mold should be reset and installed to avoid deformation due to its own weight.

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