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Acid and alkali resistant fabric core conveyor belt

Acid and alkali resistant fabric core conveyor belt

The acid-alkali-resistant fabric core conveyor belt is a conveyor belt that is resistant to working conditions such as acid and alkali medium corrosion, and is mainly suitable for continuous production operations in an acid-base medium environment. It has the characteristics of acid and alkali medium corrosion resistance, good groove formation, high production efficiency, low relative cost, etc. It is irreplaceable by general purpose fabric core conveyor belts. Acid and alkali resistant fabric core conveyor belts are widely used in chemical industry and heavy industry related to acid and alkali media. Selection of core structure of acid and alkali resistant fabric core conveyor belt The core body adopts the overall skeleton material-polyamide fiber or polyester fiber as the skeleton, which has good toughness, high joint strength and good impact resistance. Polyamide fiber, called nylon and nylon in the United States, and cotton fiber in China. The basic performance is as follows: (1) High strength and good impact resistance. (2) High elasticity, good fatigue resistance, rebound rate of 98% -100%, multiple deformation resistance is second only to polyester; (3) The heat resistance is poor, the temperature rises, the fiber shrinkage strength decreases, and the heat resistance is worse than polyester. When heated at 150 ° C for 1h, the strength remains 695; (4) Good wear resistance, better than other fibers, 4 times higher than polyester; (5) The light resistance is poor, and the amide bond in its macromolecule is easily broken by light, resulting in a decrease in the high degree of polymerization.
Time of issue: 2020-11-20
What are the characteristics of polyester rubber conveyor belt

What are the characteristics of polyester rubber conveyor belt

The polyester rubber conveyor belt is widely used in the industrial industry. The structure of the polyester rubber belt is made of multilayer polyester, that is, EP (or polyester in the warp direction and polyesteramine in the weft direction). The scientific research and development of abrasion-resistant rubber with high strength and toughness. So what are the characteristics of this polyester rubber conveyor belt? 1. Good elasticity, impact resistance, tear resistance and other characteristics, to meet the special requirements of use under complex conditions, etc .; 2. Small constant load elongation. The constant load elongation performance of the polyester canvas conveyor belt with small elongation is more successful than ordinary non-slip conveyor belts and some other common specifications of fabric core conveyor belts, which can greatly reduce operation during use Travel, efficient (referring to high efficiency) scientifically reduce overall equipment costs, which is extremely advantageous for long distance material transportation (explanation: can overwhelm each other's favorable situation); 3. Stronger water resistance. Used in humid and cold environments, the rubber (the comprehensive strength of the belt will not be affected in any way, it will still work normally, and it will last longer on the long life cycle; 4. Acid resistance, alkali resistance, temperature and heat resistance are even better, from a long-term perspective, the use of ep conveyor belt is more economical and affordable; 5. The quality of the rubber conveyor belt is not heavy. Compared with other wide rubber belts in the food industry, it has fewer layers, thin belts, light weight, and strong plasticity during use. Improved capacity can reduce equipment power consumption and optimize the transportation radius to meet the requirements of reducing energy (explanation: providing energy conversion materials to nature) and increasing efficiency; 6. The tensile strength of the cover layer is higher than 15 MPa, the load elongation is higher than 450 percent, and the friction loss is lower than 150 cubic meters; 7. The adhesive strength between strong EP fabric layers (strength) The average length of the longitudinal sample is greater than or equal to 4.5 N / mm, and the adhesion rate between the covering rubber surface and the fabric layer is greater than 4 N / mm 8. The overall longitudinal thickness tear change rate and full thickness longitudinal reference force elongation have reached international standards. In line with international standards, polyester rubber conveyor belts have become the first choice of supporting machinery supporting products used by many customers on the site, and they are favored (Expressing love or respect for people) The degree is increasing year by year. The conveyor belt is divided into ordinary conveyor belt and powerful conveyor belt according to the tensile strength of the conveyor belt cloth layer. The powerful canvas conveyor belt is divided into nylon conveyor belt (NN conveyor belt) and polyester conveyor belt (EP conveyor belt).
Time of issue: 2020-11-20
Rubber conveyor belts must consider factors in addition to quality

Rubber conveyor belts must consider factors in addition to quality

Rubber conveyor belts should be very extensive in industrial production. Each enterprise also has certain differences in the requirements for conveyor belts. Therefore, when purchasing rubber conveyor belts, in addition to examining the quality, companies must choose the ones that meet their own needs. Rubber conveyor belt. This chapter teaches you how to choose a rubber conveyor belt. 1.Select according to the length of the belt conveyor For short-distance belt conveyors, polyester conveyor belts should be used. For short-distance belt conveyors, the fabric core conveyor belt can meet the requirements due to the low tension of the belt. At present, among fabric core conveyor belts, polyester fabric core conveyor belts have lower elongation and higher tensile strength than fabric core conveyor belts, and should be preferred. 2.Select according to the nature of the material being conveyed The material being conveyed contains large-size block materials with high hardness. When the direct drop of the receiving point is large, in addition to the thickness and performance of the cover layer, the impact resistance of the conveyor belt should be considered. The use of impact-resistant, tear-resistant conveyor belts, especially nylon conveyor belts. Of course, products such as ordinary conveyor belts cannot be selected. Otherwise, various problems are prone to occur. 3.Select according to special operation requirements For underground coal mines and other workplaces that emit combustible dust, the choice of conveyor belts should be selected in strict accordance with national standards. When using roller-driven belt conveyors, flame-resistant conveyor belts must be used. The non-metallic parts of the belt conveyor rollers and the rubber material of the rubber-coated drum must also meet the relevant requirements for flame retardancy and antistatic performance. 4. Working environment temperature requirements of conveyor belt The working environment temperature of rubber conveyor belt affects the choice of conveyor belt. The working environment temperature of the general-purpose conveyor belt is usually a 25 to 40 ℃ as the selection limit. When below 25. At C, a cold-resistant conveyor belt should be used. When the conveyor belt works under cold environment conditions, the covering layer of the ordinary conveyor belt is prone to hardening, surface cracking, and poor slot formation, and it is easy for the conveyor belt to slip on the roller. The design should be based on the working temperature of the cold environment, and select the corresponding temperature class cold resistant conveyor belt to ensure the reliable operation of the equipment.
Time of issue: 2020-11-20
How to choose the wire rope conveyor belt material

How to choose the wire rope conveyor belt material

The application scenarios of steel wire rope conveyor belts are more complicated, so their structural requirements are also higher. Compared with other types of conveyor belts, steel wire rope conveyor belts have a unique skeleton structure, and they have certain special requirements for the skeleton material. The following conveyor belt manufacturers take a detailed look at the choice of the skeleton material of the wire rope conveyor belt. Selection of framework materials The choice of framework materials is based on the strength specifications of the wire rope core conveyor belt, and steel wires of different diameters and different structures are selected. At present, there are two types of steel wire ropes used in high-wear steel wire core conveyor belts: copper-plated and zinc-plated. Because galvanized steel ropes are susceptible to corrosion and shorten the life of the conveyor belt, we choose galvanized steel ropes and cover them with a special adhesive layer , So it is not easy to rust and can guarantee long-term use. The structure of the steel wire rope for the conveyor belt has two types: standard structure and open structure. There are three types of standard structures: 6 × 7 + IWS, 6 × 19 + IWS, 6 × 19W + IWS; open structures include K6 × 7 + IWS, K6 × 19 + IWS, K6 × 19W + IWS. The diameter is the same, the structure is different, and its strength, flexibility and adhesion to rubber are different. There is a certain uniform gap between the same layer of steel wire in the open structure of the steel wire strand and between the outer and middle strands of the rope, which can infiltrate more rubber, which is conducive to adhesion and prevent friction and rust of the steel wire rope, so all specifications are highly wear-resistant The steel wire rope core conveyor belts adopt an open structure. In addition, according to the standards and performance requirements of steel wire core conveyor belts, we determine the wire rope core conveyor belts with the specifications of ST630-ST1000. The steel wire rope uses the structure of K6 × 7 + IWS. 19 + IWS structure; The specifications are ST3150-ST5400 steel wire belt, and the steel wire rope adopts K6 × 19W + IWS structure.
Time of issue: 2020-11-20
Standards and analysis of rubber products

Standards and analysis of rubber products

Rubber products are widely used in our production and life, but there are certain standards for rubber products. People continue to modify and optimize certain aspects in order to make this industry have a longer development. At present, some types of adhesive products such as scotch tape, insulation tape, and sealing tape are gradually being packaged with sleeve labels. However, according to the production process of products, many domestic factories still use manual labor to connect and adopt manual packaging. In terms of production cost control and output limitation, there is an urgent need for automated production process solutions. According to customer production needs, there have been solutions designed by some enterprises on the world. First introduce the special characteristics of this kind of product packaging: this type of product is generally a cylindrical body, after packaging, shrink up and down into about 5mm. Individual packaging and fixed number packaging need to be labeled or placed on the round card trademark. The inner diameter is the same, the product specifications are many, and the outer diameter error of similar products is large. The entire design and production process can be divided into the following points: First, the product is sorted into a single product and entered into the conveyor line, and then entered into the mold through the discharge device. There are generally two ways for this kind of product: individual packaging is directly loaded on the mold, and a fixed number of packaging needs to add a counting device control line to achieve. The mold is made adjustable according to the product specifications. To meet the needs of a variety of products with a single machine, reduce customer costs, save time, and eliminate the hassle of replacement. Maximize the utilization of the machine. Because the shape and outer diameter of the product are not uniform, the accuracy of the sleeve labeling machine is very high. According to many years of production experience, the dual positioning guide system that has appeared in the world can perfectly solve this kind of problems, making the standard pass rate of 99.9%. If a round card trademark needs to be placed, a labeling device is added to the front of the sleeve label. Shrink: Due to the special nature of this type of product, electrothermal shrinkage is used. But electrothermal shrinkage is generally more difficult to control than steam shrinkage. Wrinkles and uneven heating of the vortex will occur. In addition, the outer diameter of the product is not uniform, and the size on the selection label is much larger than the conventional one. This makes it very difficult to shrink. However, the use of rotary stepwise shrinkage can solve this problem. Take: Adopt synchronous feeding device. Reclaiming is more stable. Automatic alarm and linkage control solve the problem that the machine continues to run when a fault occurs. Different methods and different "means" are used to be better. In fact, the analysis of rubber products is also essential, and its standards need to be constantly updated.
Time of issue: 2020-11-20
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