Steel pipe burst test rig is used in certain specifications of the polymer sheet material (such as the surface of the film, leather, etc.), or a pipe, the inner surface of the container, through the liquid or air to continuously applied pressure to test sample burst when the maximum pressure and get material bursting strength equipment.

For hydrostatic testing purposes, there are two: one is the process of hydraulic test to test whether the leaking pipe, that test tube sealing performance; Another is confirmatory hydrostatic test to test the strength of steel adequacy.

Rendering using TIG backing, backing thickness not less than 3mm; often used when backing weld small flashlight to check whether or not the root of the weld penetration phenomenon; welding to "Positioning block" when the "positioning block "get rid of, and with a grinder pads worn away, leaving no scars and other traces of welding, and after the naked eye or with a low-power magnifier check to make sure no cracks and other defects, can continue welding; to improve the protective effect of argon fight tear a little bit at the end when welding aluminum foil tape

When welding steel pipe, nozzle should do the following preparations:

The ERW steel pipe, which is the Electric Resistance Welded steel pipe, begins as a coiled plate of steel with appropriate thickness and specific width in its processing.

If you ever take a look at the steel pipe production process, you will find out that molybdenum increases the resistance of welded steel pipe to both local and general corrosion. This is because molybdenum and tungsten can protect the welded pipes from eroding.

Pipe internal cracks solutions are as follows:

Spiral submerged arc welding as raw material is often warm extrusion molding, automatic double -sided wire submerged arc welding process.

Role of Alloy Elements in Stainless Steel

The delivery pressure of pipeline medium has a tendency to increased gradually, particularly evident in the pipeline online. This is because in a certain range to improve delivery pressure will increase the economic benefits to gas lines, for example, the amount of change in the input conditions, the gas is increased as the delivery pressure increases the density of the flow decreases, so that the friction decreased.

Construction or industrial road traction is generally reinforced by former or wire straightening machine, mainly for steel pre-cut path to improve the surface quality.

Galvanizing is a process of coating iron or steel with zinc in order to provide greater protection against corrosion for the iron or steel base. The process of galvanizing sheet iron was developed simultaneously in France and England in 1837. Both of these methods employed a "hot dipping" process to coat sheet iron with zinc. Like tinplate, early galvanized metals were hand dipped. Today almost all galvanized iron and steel is electroplated.