What is the standard for judging the quality of the industrial godown steel structure?
What affects the quality of steel structures? How is the quality of the standard judged? What is the reason for the big price difference? Mainly reflected in what?
In fact, there are three key factors in the price of industrial godown steel structures. One is material profit, the other is processing profit, and the third is fixed cost. Add these three together and every business will calculate. In fact, the better the quality of the steel structure, the higher the profit due to the excellent processing, and the cost that the manufacturer has to earn is quite high. As for how to judge the quality of warehouse steel structure? What is the standard for judging the steel structure of an industrial warehouse? The following canglong steel structure manufacturers and you detail them one by one.
First, the appearance quality
The quality of the appearance of the steel structure directly affects the finishing effect of the entire wall after installation. When reviewing the appearance quality of the steel structure godown, the following scopes should be paid attention to:
A. There should be no obvious damage to the surface of the steel structure, which means that the protective film on the surface of the steel structure should not have scratches and scratches.
B. There should be no obvious color difference in the color appearance of adjacent components on the steel structure of the industrial godown.
C. There should be no aluminum scraps, plants, oil spots or other stains on the surface of the steel structure, and there should be no spilled adhesive at the dismantling joint.
D. The flatness of the connection position of the adjacent components (horizontal and vertical) of the steel structure warehouse and the regulations for the formation of the stand.
E. Whether the warehouse steel structure glass sealant is uniform, lubricated, and has no leaks or breakpoints to ensure the sealing effect.
F. Steel structure is the main component. The quality of the color steel plate largely determines the quality of the steel structure. Macroscopically, there are no cracks, scratches, follicles, etc. This can be seen from the back with the naked eye, and at the same time, it can be observed from the front through the reflective effect of the color steel plate. If the hollow color steel plate is used, it is also necessary to pay attention to whether the hollow spacer is complete.
Second, the identification of the mark
Regular or licensed manufacturers have markings indicating the products in the obvious positions of their products. Include: the name or brand of the processing plant, product title, product model or logo, manufacturing date or serial number. There should be obvious words and marks of "moisture-proof", "careless handling" and "upward" on the packing box.
Third, size bias
The size of the industrial godown steel structure tends to be the smallest. Under normal circumstances, steel structure manufacturers will have construction plans, and customers can directly measure and compare with instruments.
Fourth, steel structural components
The connection of steel structure warehouse components should be strong, and corrosion-resistant filling materials should be used to make the connection completely sealed and waterproof.
Fifth, look at the material
There are 6 key ranges for reference in material materials:
1. Thickness: There are two types of steel beams in industrial warehouses: Q235B and Q345B, and Q235B can be used for steel beams outside the housing. The series numbers indicate the millimeters of the thin and thick structural dimensions of the door frame. There are four types of windows: Q198, 60 series, Q235B and Q345B. The selection of the series should be determined according to the size of the window hole and the wind pressure value in the field. Warehouse windows used for opening H-beams should not be smaller than Q235B.
2. Strength: The tensile strength should reach 157 Newtons per square millimeter, and the yield strength should reach 108 Newtons per square millimeter. When purchasing, you can bend the profile by hand, and it should be able to return to its original state after letting go.
3. Chromaticity: There should be no difference in the color of the same steel profile. If the color difference is obvious, it is not suitable for purchase.
4. Flatness: Check the appearance of steel structure profiles, there should be no protrusions or bulges.
5. Gloss: The industrial godown steel structure is prohibited from purchasing profiles with obvious defects such as follicles (white spots) and ash (black spots), as well as cracks and peelings.
6. Oxidation degree: The thickness of the oxide film of the steel structure should reach 10 silk meters. When purchasing, you can lightly and tidy the surface of the profile to see if the oxide film on the surface can be wiped off.
