CSIC accelerates the pace of technological innovation

In recent years, China Shipbuilding Industry Corporation has accelerated the pace of technological innovation, actively developed environmentally-friendly and energy-saving products, and promoted green shipbuilding.
In the past year, the major national science and technology projects of China Shipbuilding Heavy Industry have been comprehensively promoted. The “Zhenlong” deep-sea manned submersible has completed various tasks of the 5000-meter deep-sea test; a large number of scientific and technological projects such as small-caliber large-scale diesel engine crankshafts have been successfully developed, and new ship types such as 400,000-ton ore sand ship have been developed and designed; Oil tankers, bulk carriers and container ships were ordered in batches, and LNG ships were brought to market conditions; the world's first 6S50ME-C marine low-speed diesel engine was successfully tested. In 2010, the Group obtained 989 patents, including 289 invention patents.

Bakelite Injection Molding Machine

Bakelite, also known as bakelite, also known as phenolic molding, is a thermosetting plastic with high impact toughness, stable quality, corrosion resistance, heat resistance and low temperature. Generally speaking, the process of Dewei forging bakelite Injection Molding Machine brand is divided into the following processes. You can have a look together to better understand the knowledge of bakelite injection molding.

1. Bakelite mold heating

Unlike Plastic Mold, bakelite mold can be produced after being put on the machine. It takes a long time to heat up bakelite mold.

2. Temperature rise of bakelite injection molding material

The customized material of bakelite injection molding machine is generally powder. Under the friction formed by the barrel heating device and the screw, the thermosetting plastic in the barrel is melted by heat to achieve the effect of pre-setting plastic material.

3. Injection molding of bakelite products

After the completion of pre-molding, the mold closes, the screw rod starts to inject, and the molten material is pushed by the screw from the barrel nozzle through the main channel, the diversion channel and the gate of the mold into the mold core, and the mold core is fully filled. Because the melted material is cut and heated during injection molding and the mold is at high temperature, the temperature of the melted material rises rapidly into a fast response situation. The injection time of bakelite products is different from that of plastic products, and the injection time of bakelite products is relatively long.

4. Dry and solid under pressure

After injection, it will enter the pressure maintaining state immediately. The effect of pressure maintaining has two aspects: one is shrinkage, and the other is to ensure that the product structure produced by the bakelite injection molding machine manufacturer can be close and firm. After the completion of pressure maintaining, it will be delayed for a period of time, waiting for the material to be completely dry and solid, and then the product will be finalized.

5. Ejection of bakelite products

Open the mold to eject the finished product, clean the mold, and wait for the next the first mock examination product to go out.

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