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傳真: 0577-62779951 地址: 浙江 溫州市
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觸頭性能:為提高觸頭工作的可靠性,對觸頭材料的基本要求是:
1、觸頭材料的電導(dǎo)率與熱導(dǎo)率要高,以降低觸頭通過電流時(shí)的熱損耗,減輕觸頭表面的氧化;
2、觸頭材料的熔化溫度與沸點(diǎn)高、熔化與蒸發(fā)潛熱高,以減少在電弧或火花作用下觸頭的磨損量和不易使觸頭發(fā)生熔焊;
3、觸頭材料對周圍環(huán)境的化學(xué)性能要穩(wěn)定,觸頭受環(huán)境污染后接觸電阻的變化小,接觸電阻穩(wěn)定;4、觸頭材料的硬度與彈性要適當(dāng),硬度太大時(shí),接觸的面積小,彈性較大的材料在觸頭閉合時(shí),由于觸頭間的彈跳使磨損加大;
5、觸頭材料易于加工和焊接;
6、觸頭材料的價(jià)格要低。對強(qiáng)電用觸頭材料,重要的要求是:
①具有低的接觸電阻,防止通過額定電流時(shí)過熱;
②電磨損率和機(jī)械磨損率小,具有較長的使用壽命;
③抗熔焊性能好,在故障情況下能順利分?jǐn)嚯娐罚?/span>
④剩余電流小,滅弧能力強(qiáng),分?jǐn)啻箅娏鲿r(shí)能迅速滅弧,而且不會引起電弧重燃或持續(xù)電流。對弱電用觸頭材料,要求:
①低而穩(wěn)定的接觸電阻和小的電磨損率,較長的使用壽命;
②具有較高的最小起弧電壓和最小起弧電流,使觸頭盡可能在無電弧情況下操作;
③這種觸頭閉合力小,故機(jī)械磨損不是重要問題。對直流觸頭,要求在直流操作條件下,從觸頭的一方到對方的材料轉(zhuǎn)移要小。
Model: contact + sping + contact element
Features: contact with copper or copper alloy etc. Integration of automatic spot welding and riveting
Material: silver, nickel, silver and copper oxide, fine crystal, silver, silver cadmium oxide, silver tin oxide
Pure: contactor, small switch, starter, temperature cooller
Summary: electrical contact elements there are three main types:
A, riveting pieces: the rivet riveting on the copper pieces.
Product: will flake contact welding on the copper pieces.
The compound with three, sping parts: go into components.
Contact performance: in order to improve the reliability of contact, and the basic requirements of the contact material is:
1, the electrical conductivity of contact materials with higher thermal conductivity, to reduce the heat loss of contact through current, reduce the oxidation of the contact surface;
2, contact material of high melting temperature and the boiling point, melting and high latent heat of evaporation, to reduce under the effect of arc, or spark contact wear quantity and not easy to make contact welding;
3, contact materials on the surrounding environment of chemical performance is stable, contact the pollution of the environment after the change of contact resistance is small, stable contact resistance;
4, contact material hardness and elasticity to appropriate, hardness is too large, the contact area is small, flexible materials in close contact, because contact bounce between increased wear;
5, contact element, contact components, contact with copper or copper alloy such as integration of automatic spot welding and riveting.
Material: silver cadmium oxide, silver and copper oxide, nickel silver, silver tin oxide, silver tin oxide indium oxide, silver zinc oxide and the compound as a whole.
SGS certification, ISO9001 certification
6, contact material is easy to processing and welding;
7, contact materials prices lower. For high-voltage electrical contact materials, the important requirement is:
(1) with a low contact resistance, prevent through rated current overheating;
(2) electrical and mechanical wear rate of wear rate is small, has a long service life;
(3) good welding performance, resistance to breaking circuit smoothly under the failure condition;
(4) small residual current, arcing ability is strong, can quickly when breaking large current arcing, and wont cause arc reigniting or constant current. For weak current contactor material, requirements:
(1) low and stable contact resistance and small electrical wear rate and long service life;
(2) has higher minimum arcing voltage and minimum arc current, make contact as soon as sible under the condition of no arc operation;
(3) the contact closing force is small, so the mechanical wear and tear is not important problem. Requirements for dc contactor, under the condition of the dc operation, from the contact of one party to the other side of the material transfer.
Electrical contact elements can be widely used in the switch, relay, temperature cooller, circuit breaker, contactor, cooller, timer and other low voltage electrical appliances and household electrical appliances.
Production of electrical contact element, the existing Germany imported CNC automatic welding machine, riveting machine, spot welding, high-speed punching machine, punching machine, metallographic microscope, projector, 3 d imaging instrument such as production, testing equipment 150 sets, according to the specific requirements of the users development and production.
注冊資金:100萬以下
聯(lián)系人:張仁剛
固話:0577-62778861
移動(dòng)手機(jī):13868778933
企業(yè)地址:浙江 溫州市 天河區(qū)