ZG1Cr18Ni9Ti Oxidation Smelting Technology Requirements
The alloy steel of ZG1Cr18Ni9Ti is a kind of austenitic stainless steel, mainly composed of Cr18%, Ni9% and Ti%. Through forging (annealing/quenching) or cold rolling, its parts can achieve extremely high strength, and can meet the requirements of high strength, high toughness, and high corrosion resistance.
Therefore, the oxidation smelting process of ZG1Cr18Ni9Ti alloy steel is a very important craft process in the production of this kind of steel. In order to ensure the high quality of ZG1Cr18Ni9Ti alloy steel products and ensure their performance, the oxidation smelting process must be strictly implemented in accordance with the corresponding requirements.
1. The furnace temperature of oxidation smelting process must reach 300~550℃, and the temperature difference should not be more than 20℃;
2. The furnace gas must be uniform, and the flame should be sufficient, and all U-tube bores must be filled with flame;
3. The furnace oxidation smelting process must be zero splash and zero polluting, and it must be ensured that all products in the smelting process are uniform. There should be no cold spots and welding spots;
4. The oxidation smelting time of ZG1Cr18Ni9Ti alloy steel should be determined according to the material content and the product size, generally speaking, it varies from 1~4 hours;
5. The residual austenite of the oxidation smelting products must meet the requirements of the design drawings, and no decarburization is allowed;
6. The thickness of the scale and the penetration should be controlled within the required range. The scale of ZG1Cr18Ni9Ti alloy steel should be slightly thicker than the scale of carbon steel, and the thickness of the scale should be around 1~2mm;
7. The elements in the oxidation smelting process must meet the corresponding requirements, and there should be no spatter and float slag;
8. The surface gloss of the oxidation smelting products must meet the requirements, and there should be no oil stains and other stains on the surface;
9. The smelting process must be strictly prevented from taking in or containing steam and water vapor;
10. The smelting process must ensure that the surface hardness of the smelted ZG1Cr18Ni9Ti alloy steel is within the required range, and no whitening phenomenon is allowed.
The oxidation smelting process of ZG1Cr18Ni9Ti alloy steel is a very important craft process in the production of this kind of steel, and it requires strict compliance with the relevant requirements. In order to ensure the high quality of ZG1Cr18Ni9Ti alloy steel products and ensure their performance, it is necessary to ensure that all requirements in the oxidation smelting process are strictly enforced.
