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The raw material formula for the calendering of PVC film is based on polyvinyl chloride resin, and then, according to the performance requirements of the product use, the main raw materials are added with plasticizers, stabilizers, fillers and other ingredients according to the formula design ratio Auxiliary raw materials are mixed and composed. After high-speed mixing, kneading and pre-plasticization, the film products are rolled by the roller of the calender.  The composition ratio of various raw materials in the formula for making PVC film is different, and the performance of the product after forming the film is also different. Such as the stability of product performance, mechanical strength, heat resistance, cold resistance and flame retardance, etc., will change with the change of the raw materials in the formula and the proportion of the materials used. Similarly, the operating process conditions during the production of products are adjusted with the changes in their formulat

As a plastic polymer, pvc is a more practical material.This material can form soft pvc films and hard pvc construction materials due to different doses of plasticizers. It can be seen how big its hardness change is. When it comes to PVC, in fact, the film it forms also needs to be treated on the surface. Before talking about the surface properties and treatment of PVC films, let 's first understand the application of PVC films in various industries. In China 's plastic film industry, PVC films are the most widely used. More than 9% growth rate, as more and more new materials, more and more new equipment, the demand for pvc film will definitely increase!  Plastic film is also widely used in packaging lines, because it is generally used for food packaging, electrical product packaging, clothing packaging, etc. They have one thing in common, that is, they will use PVC transparent film for color printing, and among them, food The packaging also needs to be operated by vacuum alumi

PVC is a kind of material formed by the development of plastic materials to a certain extent. This material has the characteristics of good transparency and light weight.  And PVC also has its unique characteristics, that is, this material will form different forms of PVC shapes with different dosages of plasticizers, which are divided into hard PVC and soft PVC. The PVC film is the most important form of soft PVC. It is a soft PVC form formed by adding a large amount of plasticizer.  After processing, it forms a good transparency, softness, thinness and Sticky film type. This type of PVC transparent film is used in many ways. For example, in skin care products, the upper layer of plastic film contains the ingredients of the PVC film.  Another example is that the car's shading film also contains the components of the PVC film, which has a strong adhesion effect and can exist on the car glass for a long time.  As a plastic product, this film is characterized by great variability an

Transparent films are more commonly seen in daily life products, such as the fresh-keeping bags we use, the film on the mobile phone screen, etc. These are all developed from transparent films and are also the main forms of expression. The general film is made of plastic materials, so it will generally have the characteristics of plastic, and the transparent PVC film is a typical one.  As the main plastic film, this is one of the more commonly used products. At present, many forms of film are borrowed from pvc film. Because pvc itself has a certain transparency, it is more transparent than polyethylene. Better, and the resulting film also has a certain viscosity, so it is used in many fields.  Many times, it is because of the use of this plastic film that we have more safety. At present, PVC film has a certain flame retardancy, which is still very effective for use in some specific places, and also provides certain safety guarantees.  

As the main material in plastics, pvc is undoubtedly a material with high plasticity. It is also the main form of plastic films at present, such as pvc film. As a material with large hardness changes, its value in plastics is not more than Ethylene is poor. As a highly moldable material, in fact, its material quality is very critical, because it is often present in cities, in our lives and work, so the quality of its products is Need protection. At present, in addition to the use of PVC film , PVC particles and colloidal particles are also used in our lives. Therefore, it is of great significance to improve the quality of PVC colloidal particles.  What should we start from?  1. Input the materials according to the specified feeding order. Generally, the stabilizer is added first and poured at the valve.  2. To prevent phenomena such as raw meal and uneven mixing. (Generally, the cylinder should be scanned once after the powder is added, and then started at a low speed. The plasticizer

Mumetal is a NiFe alloy with very high permeability, so it is also called permalloy. Now Transmart will introduce you more about the high efficiency mumetal cores . Permalloy refers to an iron-nickel alloy, and its nickel content ranges from 35% to 90%. The main feature of Permalloy is its high magnetic field permeability. Their saturation magnetic induction intensity is generally between 0.6-1.0T. The simplest permalloy is an alloy composed of two elements of iron and nickel. Through proper rolling and heat treatment, they can have high magnetic permeability, and they can also be reasonably matched with the content of iron and nickel to obtain a relatively high saturation magnetic induction intensity. However, this kind of permalloy has low resistivity and poor mechanical properties, so there are not many practical applications. Permalloy, which is currently widely used, adds some other elements, such as molybdenum and copper, on the basis of iron-nickel. The purpose of adding these e

Rubber magnets are a type of 5261 in the ferrite magnetic material series. They are composed of bonded ferrite magnetic powder and He 4102 into a rubber compound. They are made by extrusion 1653 molding, calendering molding, injection molding and other processes. Elastic and twistable magnets. It can be processed into strip, roll, sheet, block, ring and various complex shapes. Original characteristics has flexibility, elasticity, flexibility, and can be produced into rolls, sheets, strips, blocks, rings, and various complex shapes through extrusion, calendering, injection, mold molding and other processes. Its surface can also be covered with PVC sheet, coated paper, double-sided tape, coated with UV oil, or cut into various shapes by color stamping. Machining characteristics Rubber magnet is composed of magnetic powder (SrO6, Fe2O3), chlorinated polyethylene (CPE) and other additives (EBSO, DOP), etc. It is manufactured by extrusion and calendering. Rubber magnets can be homosexual o

Hold one end of a long rope and throw the other end of a large magnet into the river like a fishing line. Such a move has become a sight on the French River in recent years. Some French people use this method to "fish" metal objects in the river, half of which are "treasure hunting", and half of them are to clean up debris in the river. Forklift driver Owen Gressier, 20 years old, played " magnet fishing " with three partners on the bank of a river 75 kilometers north of Paris. After several attempts, he "fished" a rusty cast iron pipe. He told the AFP reporter: "We have been fishing here for several years, and the bottom of the river has been very clean." Gressier created a social networking account in 2017, dedicated to communicating with and organizing events for "magnet fishing" enthusiasts, and has so far had 500 followers. The items they sucked up were varied, from bicycles, electric scooters, microwave ovens to traffic

Understanding the purpose and function of various magnets is very important for enterprises. You can make full use of the characteristics of different magnets and can better improve product performance. 1. The history of magnets: Magnets are not invented by humans, they are natural magnetite. The ancient Greeks and the Chinese discovered a natural magnetized stone in nature, called it "magnetite". This kind of stone can magically suck up small pieces of iron, and always point in the same direction after swinging randomly. Early seafarers used this magnet as their compass to distinguish directions at sea. The early discovery and use of magnets should be Chinese, that is, the use of magnets to make "compasses" is one of China's four major inventions. Second, the composition of the magnet The components of the magnet are atoms such as iron, cobalt, and nickel. The internal structure of the atoms is special, and they have magnetic moments. Magnets can generate magne

Chain link wire mesh  is also known as diamond wire mesh or rhombic wire mesh. BLUEKIN Metal Products Factory can manufacture different kinds of chain link fence, including hot dipped galvanized chain link fence, electro chain link fence and PVC coated chain link fence. Material: low carbon steel wire, iron wire and stainless steel, Process: weaving and welding. Weaving Method: straight twist, reverse twist, double-direction twist, galvanization after weaving, and galvanization before weaving. Applications: BLUEKIN Chain Link Fence is widely used for tennis courts, soccer fields, volleyball courts, can meet the needs of schools, institutions, enterprises fitness facilities. It is especially suited for sport area between buildings because of neat appearance, strong anti-impact and flexibility. Meantime this kind of mesh is extensively used as fences for playground and gardens, super highway, railway, airport, port, residence, etc. Besides chain link fence is widely used in breeding of a

Refrigerants gas play a very important part in air conditioning. Usually, they're found in gaseous or liquid form. The refrigerant can be used to cool a particular space. There are several types of refrigerants that can be used to absorb heat from a particular area and disperse it to other areas where heat is needed. These refrigerants gas are used in a variety of devices, such as air conditioners and coolers. They generally use the thermodynamic occurrence of stage transition to convert gasoline to liquid and vice versa. Refrigerant is an element in liquid or gas form. Specific areas in the refrigeration series use refrigerants for cooling. This process takes heat from the space and then releases it into some other area. This is the use of the refrigerant. The refrigerant process begins with the evaporator of this system. The refrigerant liquid will absorb warmth and eventually become vapor at low pressure. The vapor propagates to the compressor component of the system. Compresso

As we all know, inverters are electronic devices that convert direct current into alternating current. The pure sine wave inverter is used to operate high-end electronic equipment, such as medical equipment, digital music amplifiers, high-end TVs, and laser necessities. For pure sine wave inverters, there are many places in our daily life. The 220V current of the pure sine wave inverter is more stable than the power supply and the quality is better. It can be applied to all aspects of our lives. So how do we use pure sine wave inverters in our lives? What is a pure sine wave inverter? There are two types of inverters: true/pure sine wave inverters and improved sine wave inverters, both of which are mainly transformers. The sine wave based converter can operate medium to large units. Net metering installations require these types of inverters. This is also used for large RVs and boats. How do pure sine wave inverters work? The first is the choice of inverter and power supply. For the u

Selection of special lubricants There are many types and grades of lubricating grease s, and there are a wide range of applications. Choosing the appropriate lubricating grease should not only understand the physical and chemical properties of the lubricating grease, but also understand the industrial and mining conditions, refueling methods, and life requirements. Considering from many aspects, we can give full play to the performance of the grease and achieve the best use effect. To properly select grease , the following aspects should be considered: 1. Purpose 1) Friction reduction Mainly consider the use of temperature range, bearing speed, load, etc. 2) Protection Mainly consider the contact medium, such as surface metal, water, chemicals, etc. 3) Sealing First, consider the compatibility of the grease with the sealing material; secondly, it depends on the contacting medium. Vacuum sealing grease should also consider the requirements of vacuum degree. 2. Temperature  Working tem

How to choose the right lubricant Lubrication system is a system that supplies lubricant to the friction points of the machine or unit, including the requirements, alarms and monitoring of the parameters and faults for the transportation, distribution, adjustment, cooling and purification of lubricant and its pressure, flow and temperature The whole set. In the lubrication work, according to the actual working conditions of various equipment, the rational selection and design of its lubrication method, lubrication system and device are very important to ensure that the equipment has a good lubrication condition and working performance and maintain a long service life. significance. Generally speaking, the lubrication system of mechanical equipment should meet the following requirements: 1) Ensure that lubricants of a certain pressure are supplied to each lubrication point evenly and continuously, with sufficient oil volume, and can be adjusted as required. 2) High working reliability.

Lipo (battery.com/" rel="noopener noreferrer" target="_blank">Lithium polymer battery)was used in many electronic devices, which are similar to lithium-ion batteries. Their nominal voltage is 3. 6 volts.       Unlike lithium-ion batteries, lithium-polymer batteries do not have a hard metal housing, but instead surround chemicals inside with flexible materials. Main reasons for the use of lithium batteries in RC (Remote Control). Plans and helicopters are much lighter than similar NiCad or NiMH batteries, which makes our RC planes and RC helicopters fly longer and longer. If you have previously flown an RC model using a NiCad or NiMH battery, switch to Lipo (Lithium polymer)       The battery will result in the use of a different number of batteries.       If you have 6 to 7 round batteries, then 2 lithium polymer batteries will copy the voltage of these batteries correctly. There are so many choices. There are many Lipo battery manufacturers.