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In 2021, the country put forward major strategic decisions of "carbon neutrality" and "carbon peak". Hydrogen, as a clean energy source with zero pollution, has been pushed into a rapid development channel and its application in daily production and life is becoming increasingly widespread. However, the problem of lightweighting of domestic hydrogen storage tanks urgently needs to be solved!

Melt flow rate (referred to as melt index) is an important performance indicator of rotational molding materials, which has a significant impact on the processing and forming of rotational molding products. It also has important application value in rotational molding modification and other fields. However, in the modification process, which mixing rule should be followed for the melt index of the mixture?

On April 9, 2025, the Shengshan Town Fire Brigade entered our company to conduct an immersive fire drill, where professional instructors taught fire extinguisher operation and emergency evacuation skills step by step. Safety is no small matter, prevent it before it ignites!

Zhejiang Rotoun Plastic Technology Corp. was established in 2013 with a registered capital of 40 million. The company is the largest manufacturer of rotational molding functional polymer powder in China, with advanced powder processing technology, a complete set of polymer measuring instruments, a large number of professional technical personnel and complete product certification certificates (NSF, UL, FDA, RoHS, etc.).

At present, in the selection of inserts, most of them use: 1. brass; 2. Zinc aluminum alloy; 3. Stainless steel (anti-corrosion, corrosion-resistant);Defect Solution | Rolling Plastic Fuel Tank Science Popularization -2- Principle and Solution of Coating Problem ② Temperature and Embedded Parts (Expert Article) At present, in the selection of inserts, most of them use: 1. brass; 2. Zinc aluminum alloy; 3. Stainless steel (anti-corrosion, corrosion-resistant); The basic components of embedded assembly are: 1. Embedded screws; 2. Mold cavity wall; 3. Embedded components; Material selection for inserts: 1. Good thermal conductivity; 2. Sufficient mechanical strength (details will be elaborated in the next section).

With the global emphasis on energy conservation and emission reduction, plastic fuel tanks are gradually replacing traditional metal ones due to their light weight and high efficiency.