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Don't just listen to others. Welded pipe machinery project is a high investment project. On-site inspection can not only see the quality of the welded pipe machine, but also judge the scale and service of the welded pipe machine manufacturer, thus measuring the purchasing object from all aspects.
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Quality is the key, followed by price. With the progress of science and technology, the electronic industry has become intelligent, and the welded pipe machinery industry has also developed from manual and semi-automatic to automation. Technology is constantly innovating, and prices will naturally change with the market.
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Welded pipe has become a popular product in all walks of life. As a kind of production equipment, welded pipe machinery has attracted people's attention in both technology and quality. In order to meet the needs of users, it must be updated.
Galvanized pipes are mainly used for conveying gas and heating. It is a galvanized steel pipe with uniform coating, strong adhesion and long service life. The purchase of galvanized pipe can be considered from the specification, size, price and testing quality of galvanized pipe. The mechanical properties of steel are an important index to ensure the final use performance of steel. The technical parameters of galvanized pipe include tensile strength, yield point, elongation after breaking, area shrinkage and hardness index. Let's take a look at Bian Xiao.
How to choose a good galvanized pipe
1, specifications and dimensions
The size of the product is the most important consideration in the process of purchasing galvanized pipes. If you buy it wrong, the loss will be very large. We can judge whether it is suitable through the product specification table, especially when purchasing products with special specifications, we should confirm with the production enterprises to ensure that we can get the products we need. The specifications and dimensions of products should be written in the contract, so that everyone can have evidence to check and reduce unnecessary troubles.
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2. Price
Too high a price is not conducive to cost saving, and too low a price can't buy reliable products. When purchasing, we should compare the prices among similar products, and then compare the quality of the products. Considering many factors such as price, quality and transportation cost, we choose a manufacturer with high quality and low price and convenient transportation to purchase. This process is actually difficult to grasp, because professionals need to know enough about the price and quality of galvanized pipes in order to make a good choice.
Step 3 test quality
(1) The galvanized pipe shall be smooth in appearance, free of zinc knots and burrs, and silvery white.
(2) The galvanized pipe has no hydrogen embrittlement and temperature hazard, and can keep the mechanical properties of the material unchanged.
(3) The corrosion resistance is good, and the neutral salt spray test for 240 hours has no obvious influence on the performance, which can replace some processes that need hot dip galvanizing.