High-quality Seamless Pipe Quality Identification Method For Fertilizer Equipment

High-pressure seamless steel pipes for pseudo-deterioration equipment usually have the following characteristics:1. The pseudo-deteriorating fertilizer device is easy to fold with a high-pressure seamless pipe. Folding is a variety of fold lines formed on the surface of high-pressure seamless tubes for fertilizer equipment, and such defects often extend throughout the longitudinal direction of the product.

The reason for the folding is that the inferior manufacturer pursues high efficiency, the amount of pressing is too large, and the ear is generated. When the next rolling is performed, the folding occurs, and the folded product is cracked after bending, and the strength of the high-pressure seamless pipe for the fertilizer equipment is used. Great decline.

1. appearance often has a pockmark phenomenon. The pockmark is a defect caused by irregular irregularities on the surface of the high-pressure seamless pipe for fertilizer equipment due to the serious wear of the groove. Due to the pursuit of profit by high-pressure seamless pipe manufacturers for pseudo-deterioration fertilizer equipment, the most frequent rolling mill rolling is exceeded.
2. The surface is prone to scarring. There are two reasons for this: 1. The high-pressure seamless pipe material for the pseudo-deterioration fertilizer device is uneven in material and has many impurities. 2. The fake inferior material manufacturer's guiding equipment is simple and easy to stick steel. These impurities are easy to produce crusting after biting the roller.
3. It is prone to cracks because its billet is adobe, and there are many stomata in the adobe. During the cooling process, the adobe is cracked by the action of thermal stress, and there is crack after rolling.
4. It is easy to scratch, because the equipment of the fake inferior material is simple, it is easy to produce burrs, and the surface of the high-pressure seamless pipe is used for scratching fertilizer equipment. Deep scratches reduce the strength of high pressure seamless tubes for fertilizer equipment.
5. No metallic luster, light red or similar to pig iron color, for two reasons, its billet is adobe. The temperature of the fake inferior material rolling is not standard, and their steel temperature is visually measured, so that the rolling can not be carried out according to the specified austenite region, and the performance of the high-pressure seamless pipe for the fertilizer equipment is naturally unable to reach the standard.
6. The cross-fabricity of the high-pressure seamless pipe for the pseudo-deteriorating fertilizer equipment is thin and low, and the phenomenon of filling and dissatisfaction often occurs. The reason is that the manufacturer has a large negative tolerance, the reduction of the first few passes of the finished product is too large, and the iron type is small, the hole The type is not full.

A worker from a steel pipe company, which is located in China.