Huizhou Pengchengrui Technology Co., Ltd.

In the field of precision manufacturing and high-end equipment, there is a seemingly inconspicuous but crucial component - the disc-shaped washer (disc-shaped spring washer). When traditional spring steel encounters bottlenecks, nickel titanium alloy (NiTi memory alloy) disc-shaped gaskets are becoming the "new favorite" in the fields of aerospace, electronic communication, medical equipment, etc. due to their unique properties.

Nickel titanium alloy disc-shaped gasket

1、 Application scenario: Where is it needed?

Nickel titanium alloy disc-shaped gaskets are widely used in the following scenarios due to their shape memory effect and superelasticity:

-Bolt connection anti loosening: In working conditions with large temperature differences and strong vibrations (such as aviation engines, high-speed trains, and wind power equipment), ordinary gaskets may experience attenuation of pre tightening force due to material thermal expansion and contraction. Nickel titanium disc gaskets can automatically compensate for gaps and continuously provide stable clamping force, preventing loosening and leakage from the root.

-Electronics and 5G communication: In precision connectors such as mobile phones, base stations, and optical modules, they play a role in maintaining constant contact pressure and resisting impact and vibration, ensuring signal stability.

-Medical devices: Utilizing biocompatibility and superelasticity, they can be used in orthopedic fixation, interventional instruments, and other situations that require elastic support.

-Automobile and rail transit: shock absorption and constant force compression at the connection parts of sensors, motor assemblies, and battery packs.

-Petrochemical industry: Its corrosion resistance makes it excellent in harsh media environments such as acid and alkali, salt spray, etc. As a flange sealing pre tightening component, its service life far exceeds that of ordinary gaskets.

2、 Core purpose: Three major functional values

1. Constant force support: Maintain load stability within a large displacement range and avoid stress relaxation;

2. Damping and shock absorption: The phase transformation energy dissipation mechanism of nickel titanium alloy can achieve several times the shock absorption performance of ordinary spring steel;

3. Temperature adaptation: Through martensitic transformation control, active clamping and shape recovery can be achieved with temperature changes.

Nickel titanium alloy disc-shaped gasket

3、 Production process: full of technological content

The manufacturing of nickel titanium disc-shaped gaskets is much more complex than ordinary stamping parts, mainly including: vacuum melting (to ensure uniform alloy composition) → hot forging and rolling (to obtain dense billets) → precision punching and forming (to control the disc-shaped angle and dimensional accuracy) → memory heat treatment shaping (to shape at 400-550 ℃, endowing shape memory and superelastic performance) → acid washing, polishing and passivation treatment (to improve surface quality and corrosion resistance) → performance testing (full inspection of load, stroke and fatigue life). Each process directly affects the memory characteristics and fatigue life of the product, and the technical threshold is extremely high.

4、 Competitiveness: Why choose nickel titanium disc pads?

Compared with traditional 65Mn and stainless steel disc springs, nickel titanium alloy disc washers have five advantages: high recoverable strain (about 8%), strong load stability, long fatigue life, corrosion resistance and maintenance free, and excellent damping performance. With the acceleration of the localization process of high-end equipment, there are only a few domestic enterprises with stable mass production capabilities in this niche field, and the first mover is establishing clear competitive barriers.

5、 Recommended reliable source manufacturers

Huizhou Pengchengrui Technology Co., Ltd. is a leading factory specializing in the production of nickel titanium alloy disc-shaped gaskets. We have mature memory alloy processing and heat treatment shaping processes, and our products cover various specifications (M3~M24, etc.), with excellent performance such as damping and shock absorption, corrosion resistance, fatigue resistance, and shape memory. We support customization based on drawings and samples. The company adheres to the principle of "source factory, quality assurance", with stable delivery time and competitive prices. We welcome new and old customers to inquire and visit our factory for a win-win situation!