Analysis of PCB terminal blocks routinely material properties
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[日期:2016-07-25] [阅读 :337] [关闭] [返回]


  Hardware in the automation industry (PCB terminal blocks in production) are essential accessories, small hardware industry not only plays in the terminal blocks a very important role in the connection, load-bearing role, but also has very highlighted decorative effect. In the terminal blocks industry, in general, terminal blocks usually made of plastic and metal pieces of composition, the eight factors of hardware selected roughly as follows:

    1, tensile strength, yield strength and elastic modulus properties ... and other machines;

    2, the bending ductility and fatigue resistance;

    3, thermal conductivity and heat resistance (with a thermal expansion coefficient);

    4, electrical conductivity characteristics;

    5, resistance to oxidation and corrosion;

    6, precision machining formability, particularly lead frames (Lead Frame);

    7, the surface flatness and electroplating;

    8, weldability (Chip Bonding & Wire Bonding)

    Ningbo Kaifei hardware display terminal blocks:

    With respect to the plastic, the choice of material determines the performance of the terminal blocks in the course of the following for you on several common terminal blocks materials and their properties:

    1, thermosets EP

    Has a good geometric stability, water is small, relative to the tracking index. It retardant, high temperature, superior grade thermoplastics stable, but the toughness is poor;

    2, glass fiber reinforced nylon PA-F

    Nylon glass fiber has a strong rigidity and hardness at higher temperatures compared to the use of non-reinforced nylon. It also applies to overvoltage protection field. Reinforced nylon absorb less than non-reinforced nylon water. In addition to these differences, the same as other properties of the two materials. Compliance with UL94, flame retardant nylon fiber reinforced grade HB to V0, wherein V0 dyed black type material in most cases;

    3, thermoplastic polycarbonate PC

    Such as high hardness, toughness, transparency and dimensional stability, good insulation properties and good thermal stability.

Especially suitable for transparent polycarbonate cover or identification material. Inorganic acidic erosion stability of polycarbonate, saturated fat, carbohydrates, petrol, fats and oils. Polycarbonate solvents, benzene = lye, acetone and ammonia resistance worse. Stress cracks may form certain chemicals and exposure;

    4, PBT thermoplastic polyester

    PBT has good geometric stability, having a high glass-fiber-reinforced material strength and heat resistance. But also has excellent reliability, flame retardancy and electrical properties;

    5, a thermoplastic nylon 6.6

    In the combination of the quality of the terminal blocks has a high insulating housing requirements made by the majority of thermoplastic nylon 6.6, this plastic can be economically processed by injection molding, environmentally friendly, is conducive to recycling.

NINGBO KAIFEI ELECTRONIC CO.,LTD.

Add: No.1111#,(North)Zhangxin Road,Xiaolin Town,

Cixi,Ningbo City,Zhejiang Pro.,China

P.C : 315321

Tel:0086-574-63519036/63805200

Fax:0086-574-63517070

Mob.: 0086-13586601887

Skype:  huaxichun1012

Wechat: huaxichun1887

QQ: 2851272150

E-mail:sales1@nb-kf.com (Cindy Hua)

Website:www.nb-kf.cn (for english)

              www.nb-kf.com (for chinese)