Cleaning of stainless steel pipes - Stainless steel pipe selection and purchase skills
Introduction and function of stainless steel pipes
Stainless steel pipes are a hollow long round steel material, mainly widely used in industrial conveying pipelines such as petroleum, chemical industry, medical industry, food, light industry, mechanical instruments, and mechanical structural components. In addition, when the bending and torsional strength are the same, the weight is relatively light, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used to produce various conventional weapons, barrels, shells, etc.
Usually, stainless steel pipes have three characteristics: weldability, corrosion resistance, and polishing properties.
Corrosion resistance
Most stainless steel products require good corrosion resistance. Stainless steel pipes are like first- and second-class tableware, kitchen utensils, water heaters, water dispensers, etc. Some foreign businessmen also conduct corrosion resistance tests on the product: heat it with NACL aqueous solution until it boils, pour out the solution after a period of time, wash and dry it, and weigh the weight loss to determine the degree of corrosion (note: When the product is polished, the product contains Fe components, which will cause rust spots on the surface during the test).
weldability
product uses different requirements for welding performance. Class I tableware generally does not require welding performance, and even includes some pot companies. However, most products require good welding performance of raw materials, such as Class II tableware, thermos cups, steel pipes, water heaters, water dispensers, etc.
Polishing properties (BQ properties)
Stainless steel products generally undergo polishing during production, and only a few products such as water heaters, water dispenser inner liners do not need to be polished. Therefore, this requires that the raw material has good polishing performance.
Stainless steel pipe selection skills
1. In-depth understanding of the performance and related data of stainless steel bends:
Stainless steel materials should be selected according to the working conditions of components or equipment. The material selector should have a comprehensive understanding of the performance of various stainless steel bends, environmental factors that limit their use, and whether it is easy to purchase, so that they can make targeted choices.
2. Service conditions for stainless steel bent pipe parts or equipment:
includes corrosive media components, temperature, pressure, stress state, life expectancy, etc., which are prerequisites for choosing applicable stainless steel. Fully understanding of the use conditions of components is the primary condition for the reasonable selection of stainless steel.
3. Practical experience in the process: Under the same service conditions, the actual use experience of stainless steel materials is an important basis for reasonable material selection and should be taken special attention.
4. Simulation test data:
In many corrosion environments, without actual use experience, laboratory simulation test data or on-site hanging sheet data are often the key data for the reasonable selection of stainless steel bent pipe grades.
Cleaning and Maintenance of Stainless Steel Pipe
First of all, if there is dust on the surface of the stainless steel pipe or dirt that is easier to remove, we can use soap to remove it. We can wipe the grease on the surface of the stainless steel pipe with a soft cloth and wash it with neutral detergent in the future.
If the surface of stainless steel pipe is covered with bleach and various acids, it should be washed immediately with water, and then washed with neutral detergent or warm water.
The surface of the stainless steel pipe has rainbow patterns, which is caused by excessive use of detergent or oil. It can be washed away with warm water neutral detergent when washing. rust caused by dirt on the surface of stainless steel pipes can be washed with 10% nitric acid or grinding detergent, or special detergent. As long as we use the correct maintenance method, we can extend the service life of stainless steel pipes and keep them clean, bright and gorgeous.