In China's steel drum industry is also very common problem, for you reflect the situation, there may be two reasons:
First, the user uses the reason You know, steel drum is a non-pressure vessel, can not afford greater pressure. Many users in use, deformation of steel drums, both inside and outside the drum and pressure changes. Some users filling the goods, the goods are hot, the temperature is high, filling, the direct tightening bucket plug, and then storage. In this case, when the cargo inside the barrel is cooled, the negative pressure is produced in the drum due to the thermal expansion and contraction. When the pressure generated by the negative pressure is too large, the steel drum may be concave, The body may have a depression and other deformation. The solution to this situation is not to tighten the barrel after filling, and other barrels of cargo cooling, the temperature reaches room temperature, and then tighten the bucket plug. There is also a case that the barrel is cold when filling the goods, but the steel drum in the storage and transportation process, the environment may be higher temperature conditions. Such as exposure to heat in the sun and so on, the drums of goods due to thermal expansion and contraction of the causes of expansion, especially volatile goods, the expansion coefficient greater. In this case, the pressure inside the bucket will rise, much higher than the external pressure, the top of the barrel may produce bumps and other deformation. The solution to this situation, but also to avoid the steel drums in high temperature environment transport or storage, to avoid the barrel in the sun exposure. If unavoidable, loosen the bucket and let the pressure in the bucket release.
Second, the reasons for drum materials If you use your production of steel drum for a long time, is the old user, he has not changed his use of methods and the environment, the sudden appearance of steel drum deformation. At this time, if you happen to replace the raw materials, then the drum deformation causes, it is likely that you change the material caused. Some steel plate material hard, good strength, while some of the soft steel plate, the strength difference. Steel soft steel plate, resistance to pressure changes in resistance to some of the deformation capacity. Therefore, you may use the original plate, the resistance to pressure deformation capacity just to meet the needs of users, the user does not produce deformation problems, and you replace the material, the steel drum anti-pressure deformation of a little worse, just can not meet the user The use of the needs of users in the use of the deformation problem appeared. In this case, you had to change back to the original material production. 【Summary】 We should know that steel drums are non-pressure vessels. No matter what kind of steel, in principle, meet the standard requirements. The user should be used under normal pressure, the pressure inside and outside the barrel should maintain a basic balance. We should put this concept to inform the user, so that they understand the use of steel drums common sense. Therefore, in principle, as long as you give the user's steel drum is not deformed, you are qualified, the user has been deformed in use, it should be caused by incorrect use of the user, steel drum manufacturers should not be responsible for . But the user may not necessarily listen to you, he must be in his own ease of use to continue to use, do not want to change the use of methods. In this case, as a steel drum manufacturer, we had to think of ways from their own, either using high-strength steel, or increase the thickness of steel. Of course, the quality of the upgrade means that the cost of upgrading, the cost of upgrading means that the price increase, as long as the supply and demand sides can accept on the line. Now is the buyer's market, we can not blindly with the user it.