DC contactor is mainly used for long-distance switching on and off DC circuit and frequent DC motor start, stop, reverse and reverse braking. Although DC contactors are not widely used in AC contactors, they have their own unique features and uses, and play an important role in low-voltage electrical products around the world.
Model: contact + stamping + contact components
Features: Contact and copper alloy or copper and other automatic spot welding and automatic riveting integration
Material: silver nickel, silver copper oxide, fine crystal silver, silver cadmium oxide, silver tin oxide, brass, copper
Uses: contactor, small switch, starter, thermostat
Contact performance: In order to improve the reliability of the contact work, the basic requirements of the contact material is:
1, the contact material conductivity and thermal conductivity to be high, in order to reduce the heat loss when the contact through the current to reduce the contact surface oxidation;
2, the melting temperature and the boiling point of the contact material, melting and evaporation latent heat to reduce the arc or spark under the action of the contact wear and difficult to make contact welding occurs;
3, the contact material on the chemical properties of the surrounding environment to be stable, the contact by the environmental pollution after the change in contact resistance, contact resistance and stability;
4, the contact material hardness and elasticity should be appropriate, hardness is too large, the contact area is small, flexible material in the contact closure, the bounce between the contacts to increase wear and tear;
5, contact components, contact components, contacts and copper alloy or copper and other automatic spot welding and automatic riveting integration.
Material: silver cadmium oxide, silver oxide copper, silver nickel, silver tin oxide, silver tin oxide indium oxide, silver zinc oxide as a whole and composite.
SGS certification, ISO9001 certification
6, the contact material easy to process and welding;
7, the price of contact materials should be low. On the strong contact with the material, the important requirements are:
has a low contact resistance, to prevent over-current through the rated current;
wear rate and mechanical wear rate is small, with a longer service life;
anti-welding performance, in the case of failure can be successfully broken circuit;
small residual current, arc extinguishing ability, breaking large current can quickly arc, but will not cause the arc re-ignition or continuous current. For weak contact materials, requirements:
low and stable contact resistance and small electric wear rate, longer service life;
has a high starting voltage and a small *** *** *** small arc current, so that the contact as far as possible in the absence of arc operation;
This contact closure force is small, so the mechanical wear is not an important issue. For DC contact, it is required that the material transfer from one side of the contact to the other is small under DC operating conditions.
Electrical contact components can be widely used in switches, relays, thermostats, circuit breakers, contactors, controllers, timers and other low-voltage electrical products and household appliances.
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Xinxiang Lifeierte Filter Co., Ltd is specialized in manufacturing filter elements, filter housing, filter equipment, testing equipment and hydraulic parts.She is located in Xinxiang that is the center of filtration in China.Xinxiang Lifeierte Filter Co., Ltd integrates with oil filtration, water treatment and air purification to provide the society with more professional service and meet customers` demands. What`s more, Lifeierte has top-notch R&D team, professional technical team, effective production network and perfect after-sales service system. The corporate philosophy of Lifeierte is [to purify environment, to serve society, to manage faithfully,and to pursue excellence". The company also established the comprehensive cooperative relations with some famous design & research institutions and colleges. The quality of the product has reached the international advanced level and makes us achieve remarkable economic benefits.
Products
Mainly including:
National standard filters and filter elements, replacement of abroad filters and filter elements, the hydraulic equipment like oil filter machines and filter series, the filter detective equipment;
Compressed air filters and filter elements, air cleaning filter drums and filter-bag series, various kinds of air cleaning facilities in different patterns;
Kinds of water treating equipment like stainless steel water filters and filter elements, full automatic backwashing filters.
We carry out ISO, DIN, IDF and 3A industry standard strictly during the manufacturing process and all the products can conform to the standards of GMP.
The endeavor makes us more professional. The performance and the effect of our replace products are comparable with imports; in addition the performance and the quality of domestically-made filters or filter elements are also stable and reliable. All those have been selected and recognized by customers and research institutions.
testing standards are satisfied by the products
ISO2941- filter elements- the testing for the cracking resistance
ISO2942- filter elements-the identifying for the structural integrity
ISO2943- filter elements-the identifying for the compatibility between material and the liquid
ISO3723- filter elements-the testing method for the end load of filter elements
ISO3724- filter elements-the identifying for the fatigue properties of the filter elements
ISO3968- filter elements-the testing for determination of pressure differential/flow characteristics
ISO4572- filter elements-the testing for the multi-pass method for evaluating filtration performance.
Power Plant Condensate Water Filter
Xinxiang Lifeierte Filter Corp.,Ltd , https://www.chinafiltrations.com