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  • What is bakelite?

    "Bakelite" is a synthetic synthetic chemical that can be used as a plastic product for materials such as lamp holders, switches, sockets, and circuit boards. The characteristics are non-conducting, high temperature resistance and high strength. Because it is used in electrical appliances, it is called "bakelite".
    Bakelite is a powdered phenolic resin, which is added to sawdust, asbestos or clay and mixed with a mold at a high temperature. The phenolic resin is the world's first synthetic resin.
    1. Stable quality, suitable for all kinds of molding methods such as injection, compression and transfer.
    2. Easy to mold, suitable for processing various molded products, such as electrical switches, mechanical parts, motor covers, home appliances, containers, handles, casings, lamp holders, parts for steam locomotives, distribution boards, transformers, micro switches and other electronic components.
    3. Thermosetting material, high arc resistance, high rigidity, high heat resistance, flame resistance, good dimensional stability.

  • What is fiberglass?

    (English: fiberglass), also known as fiber-reinforced plastic (FRP), is a high molecular weight epoxy resin or unsaturated polyester resin matrix, glass fiber (English: Glass fiber), carbon fiber or A boron fiber or the like is a composite material made of a reinforcing material and subjected to a composite process. It is lightweight, corrosion-resistant, anti-aging, waterproof and insulating, so it is used in the manufacture of various sports appliances, pipes, shipbuilding, automotive, electronic products and printed circuit boards.

  • What is engineering plastic?

    Engineering plastics refers to plastics used as mechanical engineering materials. Plastic is a polymer material with synthetic resin as its main component. It can be molded into various products under the action of heat and force. Curing agents, plasticizers, stabilizers, antioxidants, flame retardants, fillers, reinforcing materials, etc. are often added to the plastic. Plastic has two major types of thermoplasticity and thermosetting
  • What is an asbestos board?

    Asbestos, also known as asbestos, is a general term for six large silicate minerals in the form of natural fiber; (Asbestos, 5.5FeO, 1.5MgO, 8SiO2, H2O) contains a certain amount of water; when split into floccules White; silky smooth and elastic. Chrysotile asbestos is a serpentine asbestos. Its main component is magnesium citrate containing about 13% crystal water. It has good heat resistance and alkali resistance, high tensile strength and poor acid resistance. Most asbestos rubber sheets are made of it. . Blue asbestos belongs to the hornblende asbestos. The main component is citrate containing 2.5-3.5% water of crystallization. The magnesium oxide component is extremely small, and the iron oxide accounts for about 18-24%. Blue asbestos is not only good in heat resistance, but also good in acid resistance, so it is used to manufacture acid-resistant asbestos rubber sheets.

  • What is mica?

    It belongs to aluminosilicate minerals with a continuous layered helium tetrahedral structure and is divided into three sub-categories: muscovite, biotite and lithium mica. Muscovite and phlogopite are commonly used in industry, especially in the electrical industry.
    Muscovite has high dielectric strength and large electrical resistance, low dielectric loss and excellent dielectric properties such as arc resistance and corona resistance, and has a hard texture, high mechanical strength, high temperature resistance and rapid temperature change. It has good physical and chemical properties such as acid and alkali resistance; it has good enthalpy, can be peeled into thin slices along the cleavage surface, and has good elasticity and flexibility, and has favorable processing properties such as punching, cutting, sticking and rolling. Therefore, it has a wide range of uses in the industry. The main properties of phlogopite are slightly lower than that of muscovite, but it has high heat resistance and is a good heat-resistant insulating material.

  • How to distinguish the antistatic level?

    Can be divided into the following three levels:
    1. Basic antistatic level
             Surface electric resistance: 109~1012
    2. Antistatic level (static dissipative)
             Surface electric resistance: 106~109
    3. Conductive level
             Surface electric resistance: 104~106

  • What is the insulation resistance (IR) test?

    Insulation resistance is an important electrical parameter for the performance of reactive insulation materials. The basic theory of insulation resistance test is very similar to the withstand voltage test. The determination of withstand voltage test is based on the amount of leakage current, while the insulation resistance test is based on the form of resistance value. Judging basis, usually the test value must be MΩ above, the general test requires that the higher the insulation resistance value, the better the insulation of the product, the insulation resistance test is sometimes designated as an additional test to ensure that the insulator is not damaged during the withstand voltage test. .
    The insulation resistance test is similar to the withstand voltage test. The main method is to measure the equivalent resistance value formed by the connected networks between the two end points and their peripherals. The insulation resistance means insulation. The material is separated by the resistance between the two conductors. The insulation resistance is called to ensure the safety of the electrical equipment. A minimum requirement is placed between the conductors of different polarities (different phases) or between the conductors and the casing. .
    The purpose of implementing the insulation resistance test:
    The factors affecting the measured value of the insulation resistance are: temperature, humidity, measured voltage and action time, residual charge in the winding and the surface condition of the insulation. By measuring the insulation resistance of the electrical equipment, the following objectives can be achieved:
    1. Understand the insulation performance of the insulation structure; from the high-quality insulation material to form a reasonable insulation structure or insulation system, it should have good insulation performance and high insulation resistance value.
    2. Understand the insulation performance of electrical products; the insulation treatment of electrical products is not good, and its insulation performance will be significantly reduced.
    3. Understand the moisture and contamination of the insulation; when the insulation of the electrical equipment is damp and contaminated, the insulation resistance will usually drop significantly.
    4. Verify that the insulation is subjected to the withstand voltage test; if the withstand voltage test is performed when the insulation resistance of the electrical equipment is below a certain limit, a large test current will be generated, causing thermal breakdown and damage to the insulation of the electrical equipment. Therefore, in general, various test standards stipulate that the insulation resistance is measured before the withstand voltage test.
  • What are the scope of processing services?

    Service category:
    ·Acid and alkali barrel, washing machine, etching machine, assembly welding, production order, original modification and maintenance
    ·PP barrel for electroplating, chemical diaphragm, gasket, mechanical guide, guide, star wheel
    ·Screws, rollers, gears, Palin, valve seats, various Teflon parts (EX.PTFE balls, gaskets, O-rings, screws)
    ·Milling machines, lathes, hobbing, laser, engraving, planer, grinding, cutting, all kinds of rubber, welding
    Valet project:
    ·PP, PE, UPE, acrylic, POM, PETP, PVC, CPVC
    ·MC nylon, MCR2, MCR6, PA6, PA66, N66+GF
    ·SP-1, VESPEL, Torlon, Rulon, Teflon, PVDF, PFA
    · Fiberboard (FR4-G10.G11), bakelite, asbestos, mica, synthetic stone
    ·Excellent glue (PU), silicone rubber, rubber
  • What is the difference in resistance between antistatic plastic materials?

    Surface impedance reference
    Surface impedance reference
    Antistatic bakelite
    Antistatic fiber
    AntistaticPOM (ESD225)
    Anti-static voltage
    AntistaticPEEK (ESD480)
    PEI (ESD420)

  • Why do you need an antistatic (static dissipative) grade?

    Personnel walking and friction are the main sources of static electricity. Excessive accumulation of static electricity can cause electric shock to people and even cause errors or damage to precision equipment. The main reasons are as follows:
    1. Modern offices, government offices, and other public spaces are all internal air-conditioning facilities. The use of air conditioners throughout the day will make the air drier. This will cause static electricity to be easily generated, aggregated, and dissipated.
    2. The modern indoor computer and other equipment are becoming more and more sophisticated, and the level of indoor static control requirements is further improved.
    3. The basic antistatic level available in the past, the resistance value of which is109~1012Ω(ohm), now more and more inconsistent use. In view of this, it is necessary to use a higher level of power control, that is, the resistance value is between106~109Ω(EuropeM)).
  • What are the engineering plastics that can withstand low temperature and low temperature?

    Material Minimum use temperature reference
    POM (Plastic steel) -40°C
    TeflonPTFE -200°C
    ABS -50°C
    PC -60°C
    PE -50°C
    PFA -200°C

  • What are the recommendations for general engineering plastics with higher hardness?

    Material Hardness value reference
    POM (Plastic steel) Rockwell83degree
    PETP (Super steel dragon) Rockwell95degree
    PEI Rockwell114degree
    PEEK Rockwell90degree
    Bakelite Xiao90degree
    fiber Pap63degree

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National Insulation Material Co., Ltd.
  No.79, Dinghu 2nd St., Guishan Dist., Taoyuan City 33378, Taiwan
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