Straight seam steel pipe, as you can tell from the name, is a product made of metal materials. Straight seam steel pipes are used in many industries. There are many reasons why they are loved by everyone. Straight seam steel pipes and steel pipes There is a significant difference. I believe there must be many people who think that the two are similar in terms of usage, performance, etc. Straight seam steel pipes are higher than steel pipes. The better types sold in the market include electric welded steel pipes and electric welded thin-walled pipes. Wait, the production process of straight seam welded pipe is very simple and the cost is low, so it is very popular among manufacturers. The diameter of straight seam steel pipe is also larger than other materials of the same type, and the thickness is also an outstanding advantage. Users can be Customized or produced according to usage requirements.

In the process of manufacturing straight seam steel pipes, straight seam steel pipe manufacturers need to have very good control over the extrusion force. This is because, during the welding process, when the temperatures of the edges of the two tube blanks reach the welding temperature, they need to be The pressure exerted can allow their metal grains to penetrate each other and produce tightly bonded crystals to achieve a strong weld. However, if there is insufficient extrusion, the crystals will not form well and the strength of the welding position will be very low. If it is low, it is easy to cause cracking problems due to external forces during use. However, when the extrusion is too large, the welding metal that has reached the welding temperature will be extruded out of the welding seam position, and the actual welding can reach The temperature of the metal will be very small, so the number of crystals will also be reduced, which will also cause the welding to be not strong enough, and there will also be large burrs, which will aggravate the defects.

Maintenance method of large diameter straight seam steel pipe

1. Choose a suitable site and warehouse

(1) The site or warehouse where steel pipes are stored should be in a clean place with smooth drainage and away from factories and mines that produce harmful gases or dust. Remove weeds and debris on the site and keep the steel pipes clean.

(2) Materials that are corrosive to steel pipes such as acids, alkalis, salts, cement, etc. must not be stacked together in the warehouse. Different types of steel pipes should be stacked separately to prevent confusion and contact corrosion.

(3) Large steel sections, rails, steel plates, large-diameter steel pipes, forgings, etc. can be stacked in the open.

(4) Small and medium-sized steel, wire rods, steel bars, medium-diameter steel pipes, steel wires steel wire ropes, etc., can be stored in a ventilated material shed, but the top is covered with a thatch and the bottom is padded.

(5) Some small steel pipes, thin steel plates, steel strips, silicon steel sheets, small diameter or thin-walled steel pipes, various cold-rolled and cold-drawn steel pipes, and high-priced and corrosive metal products can be stored in the warehouse.

(6) The warehouse should be selected based on geographical conditions. Generally, an ordinary closed warehouse is used, that is, a warehouse with a wall on the roof, tight doors and windows, and a ventilation device.

(7) The warehouse is required to be ventilated on sunny days, and closed to prevent moisture on rainy days, and a suitable storage environment must be maintained at all times.

2. Reasonably stack and put first

(1) The principle requirement for stacking is to stack according to varieties and specifications under the conditions of stable and guaranteed stacking. Different types of materials should be stacked separately to prevent confusion and mutual corrosion.

(2) It is prohibited to store items that may corrode steel pipes near stacking locations.

(3) The bottom of the stack should be elevated, solid, and flat to prevent the material from getting damp or deformed.

(4) Materials of the same kind are stacked separately according to the order in which they are put into storage, to facilitate the implementation of the first-come-first-served principle.

(5) For steel sections stacked in the open air, there are wooden mats or strips of stone underneath, and the stacking surface is slightly tilted to facilitate drainage. Pay attention to placing the materials straight to prevent bending and deformation.

(6) The stacking height shall not exceed 1.2m for manual operation, 1.5m for mechanical operation, and the stack width shall not exceed 2.5m.

Non-ferrous metals, also known as non-ferrous metals, refer to metals and alloys other than ferrous metals, such as copper, tin, lead, zinc, aluminum, brass, bronze, aluminum alloys, and bearing alloys. In addition, chromium, nickel, manganese, molybdenum, cobalt steel, vanadium, tungsten, titanium, etc. are also used in industry. These metals are mainly used as alloy add-ons. Based on the properties of the metal, tungsten, steel, titanium, molybdenum, etc. are mostly used to produce cutting tools. Carbide used. The above non-ferrous metals are called industrial metals. In addition to steel, there are precious metals: platinum, gold, silver, etc., and metals, including radioactive uranium, radium, and other steel.