The performance improvement of stamping elbow
In order to improve the corrosion resistance and weldability of the stamping elbow, the appropriate amount of stable elements Ti, Nb, Mo, etc… can be added. The weldability is better than that of the stamping elbow. When using the same type of chromium stainless steel electrode, it should be preheated above 200℃ and tempered around 800℃ after welding. If the weldment cannot be heat treated, chrome-nickel stainless steel electrode should be used. When installing, the stamping elbow can be directly installed on the pipe according to the connecting mode and installed according to the used position. In general, it can be installed in any position of the pipeline, but it needs to be easy to operate the inspection, and the stamping elbow should be installed horizontally. Stamping elbow in the installation to pay attention to the sealing, to prevent leakage phenomenon, affecting the normal operation of the pipeline.
Stamping elbows
Stamping elbow yield is press, the base mould, embossed on the mould, and under the together effect of several devices, such as filling mould to produce, the press should be sure to choose is pressure is greater than the strength of the bend deformation, the pressure of the mold base and mold, because the original technology is backward, the mould is not careful, the length of the mould need to be greater than the length of the bend to ensure the stamping elbow machining allowance, now are made of CNC lathe mold a thickness of a model of a mould, ensure the elbow in stamping, diameter and the neat appearance.
The heating temperature is also an important factor in the production of the stamping elbow. The late integer is the stamping elbow through the restrictions, the general appearance has come out, also need the disc, the car mouth grinding and so on the link this is a fine work, the appearance of the stamping elbow depends on this. Therefore, attention should be paid to stamping elbow processing:
- Choose good tap material. The wear resistance and toughness of taps can be improved by adding special alloying elements to ordinary high speed tool steels.
- Titanium nitride coating on the surface of tap thread can significantly improve the wear resistance, heat resistance and lubricity of the tap
- Appropriately increase the amount of tap shovel back. However, it should be noted that, if the amount of shovel back is too large, it is easy to cause the phenomenon that the chip is inserted into the back corner of the tap, and the thread finish of tapping is not good.4, reasonable choice of tool heat treatment method, in order to give consideration to the tap hardness and toughness.