Carbon steel CNC machined parts, used in new energy vehicles, surface treatment electroplating environmental protection ROHS zinc-nickel alloy.

Advantages of zinc-nickel alloy surface treatment for fasteners: Among the components that ensure the structural stability and functionality of industrial products, fastener industrial connectors play a leading role, and the quality of fasteners is a key condition for meeting quality standards in the production of industrial products during their service life. The need for high quality is reflected in the continuous change of surface treatment from pure zinc layer to zinc alloy coating, which is due to the ability of zinc-nickel alloy coating to produce a higher level of corrosion protection.

1. The main advantage of zinc-nickel coatings is that they provide superior corrosion protection, independent of the post-treatment. The protection of a zinc or zinc-iron coating depends heavily on the post-treatment, most importantly the application of the sealing layer. Once the post-treatment layer is destroyed, corrosion will proceed at an accelerated rate and produce more white corrosion products.

2. In addition to the low corrosion of Zn-Ni alloy, it also has high wear-resistant alloy properties with a hardness of 500 HV-550 HV (14% Ni). High-strength fasteners with a tensile strength of 1000n/mm² (performance class 10.9 and above) are at risk of hydrogen embrittlement. This is a critical factor as the tensile strength of the fastener increases. Zinc-nickel alloys are unique in that they greatly reduce the risk of hydrogen embrittlement. Pure zinc coatings or other zinc alloy coatings have a much higher risk of hydrogen embrittlement.

This property of zinc-nickel alloys makes them the preferred alternative to cadmium in the aerospace industry, even in high-strength steel materials of 1400 n/mm, where surface-treated zinc-nickel alloys are used in the manufacture of high-strength fasteners. The thermal resistance of zinc-nickel coatings maintains corrosion protection even when subjected to high temperatures. This makes zinc-nickel surface treatment coatings the preferred choice, for example, for automotive applications - brake components or engine compartment components.

Conclusion: Zinc-nickel alloys are especially used in the automotive industry, aerospace medical equipment, food and beverage equipment communication, and other industries, which is one of the many favorable factors of this coating.

(1) Very high corrosion resistance.

(2) High wear resistance.

(3) Significantly lower risk of hydrogen embrittlement compared to pure zinc or zinc-iron.

(4) Excellent thermal stability. If you are looking for high-quality fastener screws&all kinds of nuts or technical support for structural design, please contact me.Thanks.Email: sales@jxfastener.cn,

Automotive parts starting system: engine assembly, filter, cylinder and parts, oil seal, oil pump nozzle, fuel economizer, valve lifter, oil pipe, connecting rod assembly, crankshaft camshaft, bearing bush and connecting rod bush, valve and parts, fuel tank, piston, flywheel ring gear, tensioner, belt, supercharger, carburetor, three-way catalytic converter, fuel injection device, starter and accessories, other engine systems and other automotive engine system accessories.

Auto parts walking system: front axle, rear axle, shock absorption system, suspension system, axle housing, axle shaft, balance weight, buffer, rim, wheel hub, frame assembly, automobile tires, agricultural vehicle tires, engineering machinery tires, and Other walking systems and other automotive parts.

Automotive parts Body accessories: car shell, car door, car glass, car mirror, license plate frame, seat and accessories, car bearings, armrests, handles, handles, grille, fenders, cab and accessories, airbags, car seat belts, Glass regulator, car antenna, wiper, car muffler, car horn, car seal bumper, luggage, luggage rack, extrusion parts, stamping parts, exhaust pipe, other body accessories, and other automotive parts.

Packing: Inner is Poly foam, out is carton. Then pallet. Carton size: 29*19*19.5CM and 23.5*17.5*8, CM and pallet size is: 215*100*90CM, or as your requirement.

Packaging & Delivery and Packaging Details

1. Shrink film+wooden box

2. Cardboard box+pallet

3. Color box

4. As per the customer's request