Mianyang PPH Winding Can Company
The internal welding of PPH storage tank is an automatic long arm extrusion welding process, which is an important step in all processes. The new PPH granular material with the same nature as the tank body is hot melted at the internal weld seam, and is integrated with the tank bottom and tank body. The principle is the same as that of external welding, but its equipment is different. Internal welding process characteristics of PPH storage tank: high mechanization and automation, stable product quality; The weld specifications can be designed according to the stress characteristics of the products, so as to give full play to the integrity of the weld; The product has good integrity, the weld is integrated with the parent body, and has good corrosion resistance and leakage resistance; It can reduce flash, and the joints are smooth and beautiful. UV absorber is added to PPH granules to prevent aging and prolong service life.
Mianyang PPH Winding Can Company
The raw material of PPH mixing tank is PPH granular material, and the raw material of PP storage tank is polypropylene plate. The price of PPH granular material is more expensive than polypropylene plate; The processing of PPH mixing tank requires the use of steel molds. Before processing, natural gas is used for preheating. The startup cost is high. The PP storage tank is directly rolled into a tank with polypropylene plates, which costs little; The PPH mixing tank needs to use electric heating to melt and extrude the particles onto the steel mold, which consumes a lot of power. The PP storage tank only has the power of the welding gun, which consumes less power; The PPH mixing tank needs to be cooled and then demoulded, which are all performed by electric devices, but not the PP storage tank; The PPH mixing tank is welded with a large extrusion electric heating gun, which consumes a lot of power. The PP storage tank is welded with a small manual gun, which consumes less power; Others, such as steel mold replacement, equipment land occupation and equipment maintenance, are not required for PP storage tanks.
Mianyang PPH Winding Can Company
PPH mixing tank is made by seamless extrusion winding technology. Pipe orifice, inner weld and outer weld are all processed by automatic extrusion unit equipment, which is superior, stronger and lower than plastic tanks made by traditional technology. It is necessary to use electric heating to melt and extrude the particles onto the steel mold, which consumes a lot of power. The PP storage tank only has the power of the welding gun, so it consumes less power; The PPH mixing tank is welded with a large extrusion electric heating drag gun, which consumes a lot of power. The PP storage tank uses a small manual drag gun, which consumes less power. PPH reaction kettle uses PPH spiral extrusion and winding unit to process PPH granules into tank body forming process. The system adopts the process of hot melting PPH particles, extruding them, and then winding them onto steel dies to form cans. PPH reaction kettle has the characteristics of good integrity, uniform thickness, corrosion resistance, seamless, aging resistance and good leakage resistance.
Mianyang PPH Winding Can Company
When PPH storage tank is used, the filling rate shall not be greater than 95%, and excessive filling is strictly prohibited. Made of polypropylene, it can contain inorganic acid, malic acid, salt, ammonium, alkali, oil and most gaseous compounds under normal temperature and pressure; The lower cracking temperature and dissolution temperature of PPH storage tank are - 70 ℃ to 108 ℃, and the temperature of the liquid contained is usually between - 40 ℃ and 60 ℃; The filling rate of PPH storage tank shall not be greater than 95% when it is used, and excessive filling is strictly prohibited; When the valves, instruments, pipes, etc. on the equipment are frozen, nitrogen, air or hot water at 70~80 ℃ shall be used for thawing, and open fire heating is strictly prohibited; The PPH storage tank shall be equipped with acid and alkali resistant gaskets when containing acid and alkali liquids, and insoluble rubber gaskets when containing organic solvents; If you are not sure whether you can contain the required substances, you can consult our technical personnel, and if necessary, you can carry out the tank material sample soaking test.
Mianyang PPH Winding Can Company
PPH storage tank is more advanced in materials and processing technology than polypropylene storage tank, but this will not lead to the price of the former being significantly higher than the latter, which is mainly due to the removal of intermediate profits and labor saving in the intermediate plate link. The whole tank body is thin and thick, so that the whole cylinder body is evenly stressed, the design is reasonable, and the mechanical strength and safety reliability of the tank body are guaranteed. In addition to being able to safely fill various corrosive liquids and having good sealing performance, the tank is light in weight and clean in appearance, and has more reliable advantages than plastic roll forming technology, plastic plate welding, FRP roll, hand glue technology, carbon steel lining technology and other technologies. The welding of the bottom of the tank and the bottom of the tank is the part that bears the large stress z. The internal and bottom of the tank are welded by mechanical cantilever, which can realize the large welding once without repeated welding, ensure that the tank and the tank will not leak under the rh condition, and can safely withstand various corrosive liquid operations.
Mianyang PPH Winding Can Company
PPH storage tank has good temperature resistance, acid and alkali resistance, high strength and impact resistance, longer service life, and no environmental stress fracture damage. At present, the tank has become a necessary equipment for chemical industry, smelting, rare earth, mining, pigment, printing and dyeing, new materials, new energy, and biomedicine. In the next few years, PPH storage tanks will be widely used. Manufacturing process of PPH storage tank: extruding and winding PPH granular materials. The product is formed at one time without welding. PPH tank is welded by polypropylene plate. In terms of corrosion resistance, PPH vertical storage tank and PH vertical storage tank have similar corrosion resistance. From the perspective of safety performance, the PPH tank shell is integrally formed without welding and leakage, while the PPH tank is welded, which is easy to cause leakage and increase unsafe factors. There is a big gap between the other two properties, such as aging resistance.
