Before the assembly of the B bus and the assembly of the pipeline, thorough rust removal must be carried out. There should be no burrs, rust, scales, and other debris in the pipe. The outer wall of the pipe should be coated with red dan and then painted with yellow alkyd. After the pipeline is connected, a hydrostatic test of 8 to 10 atmospheres is to be carried out to check the quality of its welds and joints, and then airtightness tests of 8 to 10 atmospheres are conducted to check for the occurrence of air leakage. Then install a grounding device that conducts static electricity between the bus bar and the acetylene pipe. Before using the pipeline, use nitrogen to drive off the air inside the acetylene pipeline, and prevent air from collecting at the end of the pipeline. A small hole can be vented at the end of the pipeline. When the pipeline is filled with nitrogen gas, the small hole is sealed with a plug. The acetylene gas is then supplied for use when the pipeline is filled with nitrogen.
Electric hydraulic portable light weight portable volume small far-light screw steel hand-held Steel Bar Cutting Machine
The steel Bar Cutting Machine is a kind of tool used to shear steel bars. Portable Rebar Cutter,Rebar Cutter,Electric Rebar Cutter,Hydraulic Rebar Cutter Shandong Luteng Building Equipment Co., Ltd. , http://www.lutengmachinery.com
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There are automatic steel cutting machine and semi-automatic steel cutting machine.
It is one of the necessary equipment for steel rebar processing, and it is mainly used to cut off the length of rebar in buildings, Bridges, tunnels, power stations and large water conservancy projects.
Compared with other cutting equipment, steel bar cutting machine has the characteristics of light weight, low energy consumption, reliable operation and high efficiency.
There are automatic steel cutting machine and semi-automatic steel cutting machine.
The fully automatic cutting machine, also called electric cutting machine, is used to control the cutting knife incision through motor transformation into kinetic energy to achieve the effect of shearing steel.
While semi-automatic is manual control of the incision, so shear reinforcement operations.
And more should belong to hydraulic steel bar cutting machine bar cutting machine is divided into charging type and portable two categories.
Electric hydraulic steel bar cutting machine mainly consists of motor, hydraulic transmission system, control device, fixed blade and so on.
Working principle: the motor drives the eccentric shaft to rotate, the eccentric surface of the eccentric shaft to back and forth motion with the plunger in contact with it, so that the plunger pump produces high pressure oil into the cylinder body, drives the piston in the oil cylinder, drives the moving blade forward, and cuts off the steel bar by phase with the fixed blade fixed on the support.
The hydraulic system of manual hydraulic steel bar cutting machine is composed of piston, plunger, hydraulic cylinder, pressure lever, pin pulling, reset spring, oil storage barrel and drain and oil suction valve.