Domestic laser mold welder industry urgently needs innovation and integration

A few years ago, domestic counterparts holding most of the domestic users could not accept the view of expensive European and American products, "Depending on the development of laser mold welding machine for enterprises to show their strengths", "the fight from the group", have vigorously produced, promoted , Cheap sales of domestic laser mold welding machine.

Due to the lack of experience in quality control of domestic laser mold welding machines, even a company consisting of several people can allow its production and operation of laser welding machines. Laser mold welding machine manufacturers have suddenly expanded from 1 to 2 homes in 2004 to the present. More than a dozen.

The oversupplied market situation has caused vicious price competition among manufacturers, the price has continued to decline, and even unreasonable sales methods such as “phased payment” or “chain franchise” have been used; in addition, the quality of domestic laser mold welding machines is inferior, and imported equipment is lagging behind. In 5-10 years, it was unable to fully meet the needs of customers and was met with cold markets. In the end, domestic laser mold welder manufacturers are in trouble.

Domestic laser mold welding machine can not pursue the use of doctrine. The processing quality is lagging behind imported equipment for 5-10 years, which is the leading reason for the crisis of domestic laser mold welding machine. Luo Baihui, head of the International Mould, Hardware and Plastics Industry Suppliers Association, believes that in order to grow and develop domestically produced equipment in China, strict quality supervision must be conducted, and unqualified equipment manufacturers must be eliminated. Laser mold welding machines must be controlled at 4-5 locations within two years. Within and focusing on the development of South China and Central China; and focusing on supporting the National University Research Institute to carry out related R&D work; first considering that all key components are purchased from abroad, and then proceeding from product material processing and assembly processes, etc., to explore advanced processing methods. .

U-tube

U-tube refers to a heat exchange tube shaped like a U, which is an important part of a U Type heat exchanger. Advantages of U-shaped tube: The U-shaped tube heat exchanger has only one tube plate, both ends of the tube are fixed on the same tube plate, the tube can be stretched freely, no thermal stress, and the thermal compensation performance is good; the tube side adopts double tube side, The process is longer, the flow rate is higher, the heat transfer performance is better, and the pressure bearing capacity is strong. The tube bundle can be drawn out from the shell, which is convenient for maintenance and cleaning, and the structure is simple and the cost is cheap. The disadvantage of the U-shaped tube is that due to the limitation of the radius of curvature of the bend tube, the arrangement of the heat exchange tubes is less, the innermost tube spacing of the tube bundle is relatively large, the utilization rate of the Tube Sheet is low, and the shell-side fluid is easy to form a short circuit, which is harmful to the transmission. When the tubes are leaked and damaged, only the U-shaped tubes at the periphery of the tube bundle are easy to replace. If the inner heat exchange tube is damaged, it cannot be replaced, but can only be blocked. Moreover, one damaged U-shaped tube is equivalent to two damaged tubes, and the scrap rate is relatively high.

U-tube,U Shaped Tube,Bundle Tubes,U Tube Bundle

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