Contactors are divided into AC contactors (voltage AC) and DC contactors (voltage DC), which are used in power, power distribution and power consumption. Broadly speaking, contactor refers to an electrical appliance that uses the current flowing through the coil to generate a magnetic field and close the contact in order to control the load.
main features
The AC contactor uses the main contact to open and close the circuit and the auxiliary contact to turn on the control circuit.
The main contact is generally normally open contact, while the auxiliary contact often has two pairs of normally open contact and normally closed contact. Small contactors are often used as intermediate relays to cooperate with the main circuit.
The contact of AC contactor is made of silver tungsten alloy, which has good conductivity and high temperature ablation resistance.
The power of AC contactor action comes from the magnetic field generated by AC through the coil with iron core. The electromagnet core is composed of two "mountain" shaped young silicon steel sheets. One of the fixed iron core is sleeved with coil, and the working voltage can be selected. In order to stabilize the magnetic force, a short-circuit ring is added to the suction surface of the iron core. After the AC contactor loses power, it returns by spring.
The other half is a movable iron core, whose structure is the same as that of a fixed iron core, which is used to drive the closing and breaking of the main contact and auxiliary contact.
We hold immense expertise in making available Copper in many forms
including LME registered and non registered cathodes, billets, rods,
cakes, bars, foil, sheet, granules, plates, powder, shot, turnings, wire,
insulated wire, mesh and “evaporation slugs”.
Copper is one of the most important metals. Copper is reddish with a bright metallic
lustre. It is malleable, ductile, and a good conductor of heat and electricity (second
only to silver in electrical conductivity). Its alloys, brass and bronze, are very important.
Monel and gun metals also contain copper. The most important compounds are the
oxide and the sulphate, (blue vitriol
Steel products refer to solid straight steel products with a certain section shape and size, including wire, profile and plate, which are formed by plastic processing except pipes. It can be divided into hot rolling, cold bending, cold rolling, cold drawing, extrusion, forging, hot bending, welding and special rolling according to the production method. It can be divided into railway, shipbuilding, mining, structure and construction according to its use. According to the material can be divided into carbon steel, alloy steel and stainless steel. At the same time, these steel products can be reprocessed to form semi-finished products or finished products to meet special requirements. We can according to the customer's different needs, according to the drawings or samples for reprocessing production.
Pipe fittings are the general names of parts and components that play the role of connection, control, direction change, diversion, sealing and support in the pipeline system. Steel fittings are pressure fittings. According to the different processing technology, it is divided into four categories, namely, butt welding pipe fittings (divided into weld and no weld), socket welding and threaded pipe fittings, flange pipe fittings.
According to the application:
1. pipe fittings for connecting pipes are: flanges, live joints, pipe hoops, clamps, clamps, throat hoops, etc.
2. changing the direction of the pipe: bends, bends.
3. pipe fittings changing pipe diameter: variable diameter (different diameter pipe), different diameter elbow, branch pipe table, reinforcing pipe.
4. pipe fittings with additional piping branches: three links, four links.
5. pipe fittings for pipe sealing: gasket, raw material belt, thread, flange blind plate, pipe plug, blind plate, head, welding plug.
6. pipe fittings for pipe fixing: clasp, hook, ring, bracket, bracket, pipe clamp, etc.
According to the connection :1, welded pipe fittings 2, threaded pipe fittings 3, clamping pipe fittings 4, clamping pipe fittings 5, socket pipe fittings 6, rubber ring connection pipe fittings
According to the material divided into 1, cast steel pipe fittings 2, forged steel pipe fittings 3, alloy pipe fittings 4, stainless steel pipe fittings.
Pipe fittings are widely used in municipal, petrochemical, west-to-east gas transmission, ships and nuclear power.
Properties: The product is a white crystalline powder or a sandy-size granularity, and a pinkish crystalline powder or a sandy-size granularity as well. Sp.gr.2.953.01g/cm3, melting point about 1000centigrade, specific heat 1.056j/gcentigradeat 18100centigrade. Its slightly soluble in water, but insoluble in anhydrous hydrogen fluoride. The content of its crystal water will be decreased while the increasing of the molecular ratio, therefore its loss on ignition will be also decreased while the increasing of the molecular ratio. After the paste of synthetic cryolite with different molecular ratio dehydrates, the loss on ignition at 800centigrade will appear 10.34%, 6.22% and 2.56% when the molecular ratio reaches 1.74, 2.14 and 2.63 reactively.
Specifications:
Appearance white powder
F 52% min
Al 12% min
Na 33% max
SiO2 0.36% max
Fe2O3 0.08% max
CaO 0.5% max
P2O5 0.03% max
SO4 0.6% max
H2O 0.4% max
Loss on ignition 2 % max
Uses: Its mainly used as a flux in the aluminum smelting by fused-salt electrolysis; also an opalizer in the manufacture of enamel; an opacifier and auxiliary solvent of glass and enamel; an insecticide of crops; a flux in aluminum alloy casting; and in the production of ferrous alloy and effervescing steel; as well as a wear-resistant filler for resin and rubber-boned abrasive wheels.
Packing & Storage: In plastic coating woven bags with plastic film inside, 25kg,40kgs, 50kgs or 1000kgs net each, or as the requirement of clients.Stored: in a cool , ventilated, dry place.
13018 Silver Tungsten Alloy Contactors Moudel Us N50 Suppliers
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Micro silica also known as fume, is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 mm. The main field of application is as pozzolanic for high performance concrete because of its extreme fineness and high silica.
Applications :
Silica is added to Portland cement concrete to improve its properties, in particular its compressive strength, bond strength, and abrasion resistance. These improvements stem from both the mechanical improvements resulting from addition of a very fine powder to the cement paste mix as well as from the pozzolanic reactions between the silica fume and free calcium hydroxide in the paste.
Advantages :
Addition of silica also reduces the permeability of concrete to chloride ions, which protects the reinforcing steel of concrete from corrosion, especially in chloride-rich environments such as coastal regions and those of humid continental roadways and runways (because of the use of deicing salts) and saltwater bridges.
Special Use: Cold Heading Steel
Wire Gauge: 1.8mm-5.5mm
Application: Construction
Alloy Or Not: Is Alloy
Type: Galvanized
Place of Origin: India and China
Special Use: Cold Heading Steel
Wire Gauge: 0.15mm to 16.00mm
Application: Fencing
Alloy Or Not: Non-alloy
Type: Spring
Steel Grade: SAE1010 SAE1045 SAE1060 65Mn 72A 82B
Origin : India and China
Ferro vanadium consist of vanadium and iron, mainly used as alloys in steel-making additives, high ferro vanadium alloy is also used as a additive. Commonly used vanadium iron containing vanadium 40%, 60% and 80% of three.
Usage of cuttlefish bone:
A valuable source of calcium to a bird, when placed in bird cages.
Used for polishing silver or even, cleaning teeth.
Used by craft workers for sharpening fine instruments.
Used by silversmiths for making moulds for casting.
Ferro silicon Specs: Si:75%min. and Si:72%min. C:0.2%max. S:0.02%max. P:0.04%max. Al:2.0%max.1.5%max.and 1.0%max .Commodity: Ferro Silicon Low Al Specs: Si:75%min. C:0.2%max. S:0.02%max. P:0.04%max.Al:0.1%max.0.3%max.and0.5%max. In 1mt plastic woven bags.
Ferro Silicon Ferro Silicon has a melting point of 1200�¯�¿�½?�?�°C to 1250�¯�¿�½?�?�°C with a boiling point of 2355�¯�¿�½?�?�°C and Ferro Silicon contains about 2% of calcium and alluminium. Ferro Silicon, as an additive to the production process of ferrous metals, will impart several desirable properties upon the resultant alloy. Some of the primary benefits of adding Ferro Silicon to an alloy is to improve the corrosion resistant properties of the new compound, as well as to add to the high temperature heat- resistance properties of the new alloy, for example, in the production of silicon steel for use in transformer cores.
DESIGN Classic long tassel ethnic style dangle earring design, never out of date.
Triangle drop earring: 4.9 x 4.3cm, Oval dangle earrings: 6.6 x 3cm, Rhombic drop earrings: 6.9 x 3.8cm, Lightweight and eye-catching.
WEAR FEELING - Study safe ear pin, no worry about allergies, comfortable to
wear, longer time to use.
MATERIAL - Antique alloy stud earrings, allergy free and does not readily
corrode, rust. Light-weight and graceful.
A valuable source of calcium to a bird, when placed in bird cages.
Used for polishing silver or even, cleaning teeth.
Used by craft workers for sharpening fine instruments.
Used by silversmiths for making moulds for casting.
Origin: Vietnam.
Broken: 3-5% max.
Shape: trimmed or untrimmed oval.
Clean, whiten, 100% Sun dried, good smell, no chemistry.
Length: 1-9cm, 10-15cm, 15-20cm or superb sizes.
Width: 4cms onwards.
MOQ: 1000kgs.
Packaging: in PP bag of 25/50kgs, a carton of 10kgs or plastic box of 500g, following buyerâ??s will. 1*40â??fcl = 8mts.
Payment & delivery: L/C at sight or T/T in advance 30%, negotiable.
We supply the Quality Ferro Alloys Like Ferro Manganese HC / MC / LC Grade I II III Mn 65% min 70% Min 75% Min Si 2% Max 2% Max 1.50% Max C 8% Max 8% Max 8% Max S 0.05% Max 0.035% Max 0.03% Max P 0.40% Max 0.30% Max 0.25% Max MC FeMn Mn 70%Min /75% Min / 78% Min Si 1.50% Max C 1.50% MAX S 0.03% Max P 0.25% Max
Ferro-Manganese Ferro-Manganese is an alloy with high percentage of Manganese, which is made by heating a mixture of the oxides MnO2 and Fe2O3 and coal & coke with high carbon content in a blast furnace or an electric arc furnace-type system. The oxides go through carbothermal reduction in the furnaces that result in producing the Ferro-Manganese. Ferro-Manganese is used in the production of steel which acts as an excellent deoxidizer and desulfurizer. We supply the one variant of Ferro Manganese: High Carbon Ferro-Manganese.
Specification
R50 R65 Rail Iron Profile Processing Train Used Rail Railway Track Railroad Steel Rails Railway Scrap Metal for Building
Standard
ASTM
Grade
Q235B
Rail Heigth
120mm
Bottom Width
120mm
Web Thickness
28mm
Head Width
70mm
Length
6m
Place of Origin
China
Zhejiang
Brand Name
zhongding
Type
Heavy Rail
Application
Railway Rail
Weight
QU70
Secondary Or Not
Non-secondary
Tolerance
�±5%
Alloy Or Not
Non-Alloy
Delivery Time
15-21 days
Technique
Hot Rollled
Material
Q235
Length
6m-12m
production mode
forge and press
Specification
R50 R65 Rail Iron Profile Processing Train Used Rail Railway Track Railroad Steel Rails Railway Scrap Metal for Building
Standard
ASTM
Grade
Q235B
Rail Heigth
120mm
Bottom Width
120mm
Web Thickness
28mm
Head Width
70mm
Length
6m
Place of Origin
China
Zhejiang
Brand Name
zhongding
Type
Heavy Rail
Application
Railway Rail
Weight
QU70
Secondary Or Not
Non-secondary
Tolerance
�±5%
Alloy Or Not
Non-Alloy
Delivery Time
15-21 days
Technique
Hot Rollled
Material
Q235
Length
6m-12m
production mode
forge and press
Specification
R50 R65 Rail Iron Profile Processing Train Used Rail Railway Track Railroad Steel Rails Railway Scrap Metal for Building
Standard
ASTM
Grade
Q235B
Rail Heigth
120mm
Bottom Width
120mm
Web Thickness
28mm
Head Width
70mm
Length
6m
Place of Origin
China
Zhejiang
Brand Name
zhongding
Type
Heavy Rail
Application
Railway Rail
Weight
QU70
Secondary Or Not
Non-secondary
Tolerance
�±5%
Alloy Or Not
Non-Alloy
Delivery Time
15-21 days
Technique
Hot Rollled
Material
Q235
Length
6m-12m
production mode
forge and press
Specification
R50 R65 Rail Iron Profile Processing Train Used Rail Railway Track Railroad Steel Rails Railway Scrap Metal for Building
Standard
ASTM
Grade
Q235B
Rail Heigth
120mm
Bottom Width
120mm
Web Thickness
28mm
Head Width
70mm
Length
6m
Place of Origin
China
Zhejiang
Brand Name
zhongding
Type
Heavy Rail
Application
Railway Rail
Weight
QU70
Secondary Or Not
Non-secondary
Tolerance
�±5%
Alloy Or Not
Non-Alloy
Delivery Time
15-21 days
Technique
Hot Rollled
Material
Q235
Length
6m-12m
production mode
forge and press
Specification
R50 R65 Rail Iron Profile Processing Train Used Rail Railway Track Railroad Steel Rails Railway Scrap Metal for Building
Standard
ASTM
Grade
Q235B
Rail Heigth
120mm
Bottom Width
120mm
Web Thickness
28mm
Head Width
70mm
Length
6m
Place of Origin
China
Zhejiang
Brand Name
zhongding
Type
Heavy Rail
Application
Railway Rail
Weight
QU70
Secondary Or Not
Non-secondary
Tolerance
�±5%
Alloy Or Not
Non-Alloy
Delivery Time
15-21 days
Technique
Hot Rollled
Material
Q235
Length
6m-12m
production mode
forge and press
Specification
R50 R65 Rail Iron Profile Processing Train Used Rail Railway Track Railroad Steel Rails Railway Scrap Metal for Building
Standard
ASTM
Grade
Q235B
Rail Heigth
120mm
Bottom Width
120mm
Web Thickness
28mm
Head Width
70mm
Length
6m
Place of Origin
China
Zhejiang
Brand Name
zhongding
Type
Heavy Rail
Application
Railway Rail
Weight
QU70
Secondary Or Not
Non-secondary
Tolerance
�±5%
Alloy Or Not
Non-Alloy
Delivery Time
15-21 days
Technique
Hot Rollled
Material
Q235
Length
6m-12m
production mode
forge and press
13018 Silver Tungsten Alloy Contactors Moudel Us N50 Suppliers
Short on time? Let Silver Tungsten Alloy Contactors Moudel Us N50 sellers contact you.
