Chemical pump selection summary Petrochemical industry occupies a very important position in the national economy, chemical process pumps as a key ancillary equipment is also more and more people's attention. Due to the complex nature of chemical media, combined with the continuous improvement of user requirements, as a manufacturer, how should we choose? Should pay attention to what aspects? ... And so on is particularly important. Now combined with the company's related product features and personal understanding of the common sense of the selection of chemical pumps to make a brief comment, hoping to benefit my colleagues in this field to better work. ◠Corrosion resistance has been the corrosion of chemical equipment is one of the most troublesome hazards, a slight carelessness, ranging from damage to equipment, heavy cause accidents and even lead to disaster. According to the statistics, about 60% of the destruction of chemical equipment is caused by corrosion. Therefore, the selection of chemical pumps should first pay attention to the scientific material selection. There is often a misunderstanding that stainless steel is a "universal material," no matter what the media and environmental conditions are held out of stainless steel, which is very dangerous. The following for some common chemical media to talk about the selection of the main points: 1. Sulfuric acid as a strong corrosive medium, sulfuric acid is a very broad use of important industrial raw materials. Different concentrations and temperatures of sulfuric acid on the corrosion of materials vary greatly, for the concentration of more than 80%, the temperature is less than 80 ℃ of concentrated sulfuric acid, carbon steel and cast iron has good corrosion resistance, but it is not suitable for high-speed flow of sulfuric acid, Not suitable for pump valve material; common stainless steel such as 304 (0Cr18Ni9), 316 (0Cr18Ni12Mo2Ti) sulfuric acid medium is also limited use. Therefore, the delivery of sulfuric acid pump valve usually adopts high silicon cast iron (casting and processing difficult), high alloy stainless steel (20 alloy) manufacturing. Fluoroplastic has good resistance to sulfuric acid, the use of fluorine pump (F46) is a more economical choice. Company products are: IHF lining pump, PF (FS) strong corrosion-resistant centrifugal pumps, CQB-F Fluorine plastic magnetic pump.
Flap Disc Adhesive
Single component Flap Disc resin adhesive glue for making flap disc:
Flap disc adhesive usage:
Composition ratio: A: B = 100:25 (weight ratio)
Available time: 25℃×25-35 minutes
Curing conditions: 25℃×4-5 hours of basic curing
72 hours for maximum strength
Flap disc adheasive glue features:
1. This single component expoxy glue is a room temperature solidification type, yellow brown viscous epoxy resin adhesive;
2. This flap disc epoxy glue can be cured at low or normal temperature, with fast curing speed and certain stop-flow;
3. after curing, the bonding part has high bonding strength, shock resistance, shock resistance, good hardness and good toughness;
4. good acid and alkaline resistance, moisture and waterproof, oil and dust resistance, moisture and heat resistance and atmospheric aging;
5. curing products have good insulation, compression resistance, high bonding strength electrical and physical characteristics.
Scope of resin flap disc glue application
1.. Flap wheel with handle chuck, flap disc, flap wheel, vertical flap disc, plastic flap wheel.
2.. ceramics, wood, glass, fiber products and hard plastic packaging bonding, has excellent bonding strength;
3.. not suitable for bonding elastic or soft materials.
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Zhengzhou Jiading Abrasive Manufacturing Co.,Ltd , https://www.jiadingabrasive.com