Product Details
Place of Origin: China
Payment & Shipping Terms
Minimum Order Quantity: 10pcs
Price: 0.15USD-0.5USD
Packaging Details: Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film.
Delivery Time: 15days
Supply Ability: 50000 pcs a week
Name: |
Metal Washer |
Standard: |
DIN,ASME,ASNI,ISO |
Material: |
Steel,Stainless Steel,Brass,Copper,Titanium Alloy,,Plastic |
Place Of Origin: |
China |
Finish: |
Polish,Passication,black ,galvanization |
Certificate: |
ISO9001:2008,ROHS |
Name: |
Metal Washer |
Standard: |
DIN,ASME,ASNI,ISO |
Material: |
Steel,Stainless Steel,Brass,Copper,Titanium Alloy,,Plastic |
Place Of Origin: |
China |
Finish: |
Polish,Passication,black ,galvanization |
Certificate: |
ISO9001:2008,ROHS |
Grade 4.8 8.8 Black Oxide Cadmium Plated Serrated Lock Washer With External Teeth DIN6798
1,Description:
The washer is a fastener used between the supporting surface of the bolt, screw or nut and the connected part, which can protect the surface of the connected part, prevent the fastener from loosening, and other special purposes. According to its specific role, it can be divided into flat washers, spring washers, anti-loose washers, special purpose washers such as sealing washers.
Washers are divided into: Flat washers - Class C, large washers - class A and C, large washers - class C, small washers - class A, flat washers - class A, flat washers - chamfered type - class A, high strength washers for steel structure, spherical washers, conical washers, I-steel square inclined washers, channel steel square inclined washers, standard spring washers, light spring washers, heavy spring washers, internal tooth lock washers, internal saw lock Washer, outer tooth lock washer, outer serrated lock washer, single ear stop washer, double ear stop washer, outer tongue stop washer, round nut stop washer.
Washers are elastic pads or snap washers that prevent bolts from loosening. The working principle of the lock washer is very simple. It consists of two washers. The outside is a radial convex surface, while the inside is a bevel tooth surface. When assembling, the inner bevel tooth surface is relative to each other, and the outer radial convex surface and the contact surface of the two ends are in a state of occlusion. When the connecting part is subjected to vibration and the bolt is loosened, only the relative dislocation between the inner bevel tooth surface of the two washers is allowed to produce lifting tension, so as to achieve 100% locking.
Spring washers are widely used in load-bearing and non-load-bearing structures of general mechanical products, which is characterized by low cost, easy installation, and suitable for frequent installation and disassembly parts. The automatic selection of washers is included, but the anti-loosening ability of spring washers is very low! Especially in Europe and the United States, the adoption rate of products requiring high reliability is extremely low, especially the important bearing structure connection parts have long been abandoned. Our country has some applications in the military industry, but it has been improved to stainless steel materials. Steel spring washers have long been banned in CASC! It is also said that it is very unsafe, for two reasons: 1 is "rising ring" and 2 is hydrogen embrittlement.
Flat washers are generally used in connection parts, one is soft texture, one is hard and brittle, its main function is to increase the contact area, disperse the pressure, and prevent the soft texture from being crushed. The basic function of the spring washer is to give the nut a force after the nut is tightened to increase the friction between the nut and the bolt! The material is 65Mn(spring steel), the hardness of heat treatment is HRC44 ~ 51HRC, and the surface is oxidized.
2,Applications:
The materials used for rubber washers are usually NBR (nitrile rubber), SBR (styrene-butadiene rubber), HNBR (hydrogenated nitrile rubber), EPDM (ethylene propylene diene monomer rubber), SILICONE (silicone rubber), VITON (fluorine rubber), CR (chloroprene rubber), and FFKM (perfluoroelastomer).
The material selection of rubber gaskets is the most common use of NBR nitrile rubber, and its cost performance is the highest. The use of FFKM perfluoro rubber gaskets is generally in more sophisticated fields, such as the field of space rockets. Because its price is quite expensive, but its performance is excellent, can exceed many metal materials.
| Applications | |||||
| car | In high-strength applications such as automotive engines, heavy-duty machinery, and bridge construction, they are preferred for their larger support area and better anti-loosening performance. | ||||
| mechanical | Mechanical, electronic, automotive, construction and other fields, used to connect various mechanical parts, circuit boards, engines, transmissions, building structures, etc | ||||
| energy | For the energy industry, brackets and fixtures used to connect power generation equipment and transmission lines |
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| architectural | In the field of construction engineering, shipbuilding, and petrochemical industry, it is used to connect building structures, improve the navigation safety and stability of ships, and ensure the safety and stability of petrochemical equipment | ||||
3,Specifications:
| material | |||||
| aluminium | Aluminum has excellent thermal and electrical conductivity. However, aluminum is naturally soft and may produce gelatinous buildup after processing. If not properly operated, it is difficult to cut during processing. | ||||
| titanium | Edm machining is well suited for titanium because the process can withstand the viscosity of this alloy and break down lengthy chips. However, deionized water is needed as a medium to help control the heat generated during processing. |
||||
| steel | Steel is a very strong metal, and many manufacturers tend to use wire cutting machines instead of CNC machines for machining complex steel features. However, this material generates a lot of heat, so necessary precautions need to be taken. | ||||
| brass | Brass has a high tensile strength and is easy to cut by machine. But the cutting speed should be slow because it is a soft metal. | ||||
4,Feature Advantage:
Non-metal washer :Usually made of polymer materials (such as rubber, plastic, etc.), with good sealing and shock absorption properties.
Application scenario: Non-metal gaskets are suitable for sealing, shock absorption, heat insulation and other applications with high requirements, including pipeline systems, electronic equipment, furniture and so on.
Metal washer:Usually made of metallic materials (such as steel, copper, aluminum, etc.), with high strength and corrosion resistance.
Application scenario: Metal gaskets are suitable for fastener connection under high temperature, high pressure, heavy load and other working conditions. Common application scenarios include mechanical equipment, automobiles, ships and so on.
Composite washer:Made of a combination of metal and non-metal materials, combining the advantages of both.
Application scenario: Composite gasket has high strength, corrosion resistance and sealing performance, suitable for fastener connection under various working conditions, common application scenarios include chemical equipment, food processing equipment and so on.
5,About us
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory and OEM are available.
Q: How long is your delivery time?
A: Generally it is 7-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: 30% T/T in advance ,balance before shippment or L/C.
If you have another question, pls feel free to contact us .
