Core Technology Characteristics

The core technology of the gasket focuses on structural adaptation, material adaptation, and surface processing, which directly determine its bearing capacity, protective effect, and service life. The specific characteristics are as follows:

• Pressure Distribution Design: By optimizing the thickness and outer diameter size of the gasket, the contact area with the connection surface is increased, evenly distributing the locking pressure of the bolt and nut, avoiding excessive pressure in one area that causes deformation or damage to the sheet.

• Anti-loosening Sealing Process: Some gaskets adopt anti-slip teeth patterns, elastic structures, or sealing materials, which not only enhance the friction force with the contact surface to prevent the nut from loosening due to vibration, but also achieve slight sealing to prevent dust and moisture from entering the threaded connection area.

• Precise Material Adaptation: According to the pressure, corrosion, and temperature requirements of the application scenario, the corresponding material is selected to ensure that the gasket has sufficient strength, toughness, and weather resistance, suitable for different harsh working conditions.

• High Precision Dimension Control: Strictly following standards such as national standards (GB), German standards (DIN), and American standards (ANSI), the tolerance of inner diameter, outer diameter, and thickness is controlled to ensure precise adaptation with the bolt and nut, avoiding issues such as offset and loosening.

Product Specification Information (General + Classification Supplement)

(1) General Specification Parameters

1. Size Range: Suitable for bolt thread specifications M1.6 - M100, inner diameter 1.8mm - 102mm, outer diameter 3mm - 150mm, thickness 0.2mm - 10mm. Customizable for ultra-thin, ultra-thick, and special-shaped sizes to meet special assembly requirements.

2. Strength Grades: Regular grades 4 and 6 (ordinary tightening scenarios), high-strength grades 8, 10, and 12 (industrial heavy-load, high-pressure scenarios), suitable for use with corresponding strength-grade bolts and nuts.

3. Material Classification:

• Carbon steel: Q235, 1018, etc., low cost, meets strength standards, suitable for dry scenarios in ordinary industrial and construction fields, and requires surface treatment to enhance rust prevention performance.

• Stainless steel: 201 (economical type), 304 (general type, strong corrosion resistance), 316 (high corrosion resistance type, suitable for humid, acidic, alkaline, and marine environments), 316L (ultra-low carbon, resistant to intergranular corrosion, used for precision equipment).

• Alloy steel: 40Cr, 35CrMo, etc., after heat treatment, has high strength and good toughness, suitable for high-strength, high-load, and impact-resistant scenarios (such as construction machinery, automotive chassis).

• Special materials: Copper (H62, conductive, sealing), aluminum (6061, lightweight), rubber (sealing, shock absorption), polytetrafluoroethylene (PTFE, high temperature resistance, corrosion resistance), suitable for special functional requirements.

5. Surface treatment:

• Basic rust prevention: Blackening, phosphating, low cost, suitable for indoor dry environments, short-term rust prevention.

• Regular protection: Galvanization (electro-galvanization, hot-galvanization), colored zinc plating, the rust prevention effect is better than blackening, suitable for outdoor and humid environments, hot-galvanization has stronger corrosion resistance.

• High-end protection: Nickel plating, chromium plating, Dacromet (Dakro), combines rust prevention, corrosion resistance and surface smoothness, suitable for precision equipment, high-end machinery, and food-grade scenarios.

Summary of applicable industries

Gasket products cover all areas that require auxiliary tightening. The core applicable industries include: construction infrastructure (steel structures, scaffolding), automotive manufacturing (complete vehicles and auto parts), new energy (photovoltaic, wind power), construction machinery, rail transit, shipping and water conservancy, pipeline engineering, precision machinery, home appliances and furniture, electronic equipment, medical devices, food machinery, and export engineering support for foreign trade. They can meet the full range of auxiliary tightening needs from ordinary daily life to high-end industries.

FAQ

Q1: What parameters should the gasket match with the bolt/nut?

A1: The core matching parameters are the thread specifications (M1.6 - M100), and it should also be compatible with the bolt strength grade to ensure consistency in size and load-bearing capacity.

Q2: How to choose different material gaskets?

A2: Generally, carbon steel (economical option) is selected; 304 stainless steel is chosen for humid environments; 316 stainless steel is selected for acid-base/oceanic environments; alloy steel is selected for high-strength applications.

Q3: Which type should be chosen for anti-loosening and sealing scenarios?

A3: For vibration anti-loosening, elastic washers/locking washers should be selected; for sealing requirements, rubber/polytetrafluoroethylene sealing washers should be chosen.

Q4: Is customization for non-standard products supported? What is required?

A4: Yes, provide drawings, samples, or clearly specify dimensions, materials, surface treatment, and usage scenarios.

Q5: Which surface treatment has a better anti-rust effect?

A5: For outdoor/humid environments, hot-dip galvanizing/colored zinc plating should be selected; for precision scenarios, nickel plating/Dacromet should be chosen; for basic anti-rust, blackening/phosphating should be selected.