With the advancement of cast iron technology and the application of resin sand production lines, mass production of integrally cast ductile iron bodies has become possible. However, due to the large changes in the structure and material of the body compared to the original cast welding body, some new problems have appeared in the deep hole processing, water pressure, scribing, thread processing and repair processing errors. Through the exploration in practice, Successfully solved the problems in processing.
Cast iron body processing technology. The main bearing bolt and the cylinder bolt threaded hole are machined. The main bearing bolt has a threaded hole depth of 230 mm, the cylinder bolt thread hole depth is 140 mm, and the machining precision is 4H5H thread. Because it is made of ductile iron material, it is blind hole processing, and due to the structure of the body, the chip depth is shallow, so the chip removal is not smooth, and the thread quality problem is very easy to occur. Using the traditional processing technology, the one- and two-cone spiral taps are tapped by the radial-arm drilling machine, and the thread is processed. First, the verticality of the threaded hole does not meet the design requirements, and the second is because the threaded holes of the two times are different. The heart causes the bolt to not screw down. To this end, the company specializes in the mechanical manufacturing process and equipment of the Railway Institute, with a bachelor's degree in engineering, and is now engaged in the work of locomotives. The technologically advanced content chip tap and the extended tool holder with high precision and overload protection make reasonable tap length and chip space, ensuring sufficient volume of the body to make the process smooth. The thread is machined once in the machining center, and the efficiency is more than doubled, and the processing quality is guaranteed. Due to the lower density of cast iron than cast steel, the safety of the original body hoisting position is reduced. To solve this problem, three kinds of cranes are used: wire rope sling nylon magnetic block, hook coated polyurethane and nylon sling. With the program, and the lifting position of different stations have been tested and specified. The utility model adopts a common steel wire rope and the hoisting position is protected by a nylon magnetic block with a hinged page. The operation is simple, safe and reliable, and the body is protected from damage during lifting.
Atomized glass adopts the principle of full patent technology, attaches new liquid crystal material to basic materials such as glass and film, and uses circuit and control technology to make dimming glass products. Atomized glass can be applied in a variety of themed locations. Atomized glass is also called electronically controlled atomized glass, which uses electricity to adjust the transparency and degree of atomization of the atomized glass. The use of intelligent atomized glass on the showcase: with bullet-proof glass, the electricity is transparent when the display is used. In the case of robbery threat, it can be directly controlled by remote control and atomized instantly, so that criminals lose the target of coercion and protect the life and property safety of personnel to the greatest extent. Intelligent atomized glass in the bathroom, toilet use: according to user needs, change the transparency, protect the privacy, but also make the space better visual impact. Intelligent atomized glass is used in office partition: it can achieve the secret function of meeting instantly and improve the overall image of the company.
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