Sandblasting hose Price Precautions ① The acid and alkali resistant rubber hose used shall not only be oil resistant, but also be pressure resistant, heat resistant, cold resistant, wear resistant and aging resistant. ② The rubber hose should not be too long or too short, generally 1.4 meters. ③ The interface is tight and can be fastened with thin iron wire or clip to prevent falling off and air leakage. ④ It is forbidden to pull acid and alkali resistant rubber hose from one room to another or through walls, floors and floors to prevent accidents caused by rubber hose breaking and falling off. ⑤) The acid and alkali resistant rubber hose should be placed in a place where it can be seen frequently, so that it is easy to detect leakage. Check whether the rubber hose leaks after each bottle change. ⑥ Do not replace acid and alkali resistant rubber hose with universal rubber hose. Since the full rubber hose does not contain a skeleton layer, it is only necessary to use a press out machine to press out the hose; The cloth clamping hose needs to use a molding machine that wraps the adhesive tape on the inner adhesive layer; When forming the suction hose, first wrap the metal spiral wire and then wrap the inner rubber; Special fabric knitting machine or winding machine shall be used for knitting and winding hose; Knitting machine is required for knitting hose. Lanzhou Sandblasting hose The basic production processes include rubber mix processing, cord fabric and canvas processing, rubber tube molding, vulcanization, etc. The acid and alkali resistant hose manufacturer said that the processing method of the skeleton layer and the hose molding equipment are different for different structures and different skeletons.

The spiral air duct will certainly be affected in the low temperature environment, so how should our manufacturer deal with this situation? First Sandblasting hose Price Do a good job in thermal insulation and select thermal insulation materials (applicable to industry and construction industry), but the selection of thermal insulation materials (applicable to industry and construction industry) is also necessary. Shandong Hongyuansheng, a spiral air duct manufacturer, will tell you how to choose. Good thermal insulation performance. The specification of the next thermal insulation material (applicable to industry and buildings) should meet the requirements of the air duct system used, not only that, but also the design requirements of the air duct. The thermal insulation material (applicable to industry and buildings) has product quality certificates and other qualified documents. Galvanized spiral air duct is widely circulated in the municipal spiral air duct market. The galvanized steel plate spiral air duct is basically the feature of stainless steel spiral air duct, but its price is only two thirds or even lower than that of stainless steel air duct. Composite spiral air duct is generally used in the environment where the environment is common, and the requirements for air duct are not too high. Thermal insulation materials (used in industry and construction) can effectively protect pipelines from damage in winter. Galvanized spiral air duct is widely circulated in the spiral air duct market. The galvanized steel plate spiral air duct is basically the feature of stainless steel spiral air duct, but its price is only two thirds or even lower than that of stainless steel air duct. Lanzhou Sandblasting hose It is generally used in the environment where the environment is common, and the requirements for air ducts are not too high. In terms of clean air ducts, fire-resistant closed cell rubber foam insulation materials (used in industry and buildings) are generally used, and incombustible aluminum (aluminum) foil glass wool board is used for smoke exhaust ducts. These two materials are common and have good thermal insulation performance.

The hard core method adopts the core extrusion process to extrude the inner rubber tube blank, which directly uses the extruder to cover the inner rubber tube blank on the iron core, instead of the traditional casing process, and simplifies the process flow. Lanzhou Sandblasting hose The billet forming adopts the process method of intertwining outer film and steel wire braiding forming. Similar to wrapping water wrapped cloth, the overlapping width is 1/2 of the film width. This process method can replace the method of wrapping outer film by extruder or by hand, reducing energy consumption and cost. We all know that the reinforcing layer and reinforcing layer of the rubber hose are the main force bearing parts, which are used to bear the load pressure. The factors determining the stress condition of the reinforced layer of the rubber hose are determined by the tension of the braided steel wire and the braiding angle. The high-speed steel wire hose braiding machine developed by our factory has introduced the advanced technology of foreign braiding production lines, and integrated the characteristics of domestic braiding machines. It integrates the advanced functions of hydraulic brake hose braiding production line, such as horizontal mechanical transmission, automatic lubrication, and so on, to develop equipment with high productivity and high degree of automation. The range of braiding diameter can be achieved Ф 6— Ф 25 Long core rubber hose (reinforcement layer). It fills the gap of domestic knitting production equipment, which can be widely used in rubber and plastic hose, rubber hose (reinforcement layer) knitting production equipment. The structure of high-pressure rubber hose is composed of four parts: inner liner, inner rubber layer, skeleton layer, middle rubber layer and outer rubber layer. Sandblasting hose Price In case of direct contact with the conveying medium, the synthetic rubber with good medium resistance, high tensile strength, high constant tensile stress, small compression permanent deformation and easy processing is usually selected. In order to meet the use requirements of strong polar medium resistance, the inner liner is composed of polytetrafluoroethylene layer and rubber layer, and a layer of film or adhesive is added on the surface of the inner liner to improve the adhesion with the skeleton material.

What are the process requirements for making welded air ducts? Both ends of the expansion joint are welded to the outer wall of the air duct. production Sandblasting hose When the fan coil unit is equipped with two air outlets, the double-layer shutter with regulating valve should be selected. Usually only small installation space is required. Without increasing any pressure drop, a circular pipe with a diameter of 200mm in the same installation space can replace 250 × 150mm rectangular pipe. Features: The iron sheet is prone to chemical reaction in various environments, causing corrosion and rust. However, zinc hardly changes in dry air. The thermal insulation and fire resistance performance indicators of the welded air duct system shall meet the requirements of Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Engineering (GB50243) and Technical Specification for Ventilation Ducts (JGJ141) respectively. In the ventilation system: supply fresh air and exhaust gas, exhaust harmful gas outdoors, and send outdoor fresh air indoors. This technology is widely used in various process pipelines, oil and gas pipelines in oil fields and other cleaning projects. Especially for pipeline cleaning of long-distance fluid transportation, it has advantages that cannot be replaced by other technologies. When the air leakage rate exceeds the requirements of the design and acceptance specifications, the leakage can be detected by listening, touching, observing, water or smoke, and the air leakage position can be found and marked; After repair, retest until qualified. Safety seal ring leak proof system. The exquisite spiral pressing rib technology enables the spiral air duct to have good strength under pressure, Sandblasting hose Price With the addition of spiral ribs, the thickness of the seam is four times that of the pipe body. The rigidity of the pipe is very large, which shows the advantages of firmness. It can withstand large pressure loads without damaging deformation. The thickness of materials can be reduced by 15%, reducing costs.

production Sandblasting hose The manufacturing of is highly automated and the production speed is very fast. The general air duct can produce 20~40 meters per minute. Due to the low price of its raw material galvanized strip steel compared with the whole galvanized steel sheet, and its factory production and specification standardization, the cost of spiral air duct is lower than that of rectangular air duct; In addition, the total cost of spiral air duct is low due to the less demand for supports and hangers and the less installation work. Since the four corners of rectangular air ducts are prone to turbulence, reducing the effective flow area, the spiral air ducts have good air fluidity and large effective flow area, so the secondary noise of spiral air ducts is low. Because the spiral air ducts are strong, the low-frequency noise caused by air duct vibration is smaller, the air flow performance is good, the system pressure drop is small, and the daily operation system consumes less power. Spiral air ducts in the market are generally divided into three categories according to their materials: galvanized spiral air ducts, stainless steel spiral air ducts and composite spiral air ducts. Among them, spiral air duct has the best quality and strong applicability, but its price is high. At present, the most widely circulated spiral air duct on the market is galvanized sheet. The galvanized sheet spiral air duct is basically the characteristic of stainless steel spiral air duct, but its price is only two thirds or even lower than that of spiral air duct. Lanzhou Sandblasting hose It is generally used in places where the external environment is relatively common and the requirements for air ducts are not too high. As the iron sheet is prone to chemical reaction in various environments, corrosion and rust will occur. However, zinc hardly changes in dry air. In humid air, dense basic zinc carbonate film will be formed on the surface of zinc. The spiral air duct is mainly coated with zinc on the iron sheet of the air duct to protect the iron sheet. The protective and decorative properties of zinc coating can be significantly improved after passivation treatment, dyeing or coating with light protecting agent.