Copper metal gasket heat treatment

Copper metal gasket heat treatmentGenerally, threaded sealing is used, and its sealing principle is that the two mating surfaces compress and deform the copper pad, so that the two surfaces of the copper pad are tightly adhered to the two mating surfaces without any gaps, thus achieving a sealing effect. To achieve sealing effect, annealing treatment is generally carried out before use, with the aim of softening the copper sealing ring to achieve better sealing effect. Therefore, it is generally used in joints with installation grooves, such as flanges with male and female fittings, valve covers, pressure gauge joints, etc. The standard is thickness and diameter size. The thickness is determined by the gap size of the sealing joint, and the size is processed according to the size of the sealing groove.
The main sealing materials include PTFE gaskets, metal toothed gaskets, flexible graphite packing rings, PTFE products, high-strength graphite composite gaskets, metal wrapped gaskets, metal coated gaskets (ladle gaskets), octagonal gaskets, aramid fiber gaskets, graphite gaskets, PTFE gaskets, high water-based gaskets, carbon gaskets, GFO gaskets, turning plates, expanded PTFE (plates, strips, gaskets), sealing materials, and gaskets.
Copper metal gasket heat treatmentperformance
1. The room temperature tensile strength of annealed sheet is 22-25 kgf/mm;
2. The elongation rate of annealed copper gaskets is 45-50%;
3. The Brinell hardness (HB) of annealed copper gaskets is 35-45;
4. The use temperature of annealed copper gaskets is less than 400 ℃.
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Copper pads have advantages such as good conductivity, thermal conductivity, corrosion resistance, and processing. The use temperature of copper pads is around 500 ℃. The melting point of the copper pad is 1083 ℃. The hardness of the copper pad is ≥ 60HB before quenching and ≤ 45HB after quenching. The outer diameter of the copper pad is between+0~-0.1. The inner diameter of the copper pad is between+/-0.1; The thickness of the copper pad is between+/-0.1.
Non metallic gaskets are divided into convex surface (RF), concave convex surface (MFM), mortise and tenon surface (TG), and full flat surface (FF) types according to their sealing surface types. Attention: The full flat (FF) type gasket has bolt holes, while other types of gaskets do not. This is due to the sealing surface of the full flat flange. We need to clarify where different gaskets are placed on the flange