Campus Direct Drinking Water Equipment Reverse osmosis water purification equipment ,Water Treatment Equipment for School ,School Direct Drinking Water Equipment,Campus Water Purification Equipment ,5 Stages Reverse Osmosis System Foshan Yajieyuan Technology Co., Ltd , https://www.yjymiclean.com
Technical Parameter:
1. Material is 38CrMOALA, tempering hardness: 260-290HBS, Metallurgical structure: More than 95% sorbite, crystal particle degree: 6-8 grade, Nitridation layer depth: 0.4-0.7, Nitridation rigidity on surface: 940-1050HV, brittleness less than 2 grade; Linear degree meet national rubber&plastic machinery industry standard; Roughness degree: The surface which is touched with material shall be processed with fine honing, and the fine polishing can reach Ra value of 0.4-0.2; The screw spray welding's nickel-base alloy+WC, thickness: 2.6-3mm; Hardness: HRC62± 2, without crack and flaw; Make bottom part nitridation treatment;
2. Material is 3Cr2W8V, H13(injection chamber), the whole body quenching hardness: HRC60± 2, nitridation hardness: 1050HV, inner hold for fine grinding Ra value 0.4
3. Material: Cr12molvl, the whole body quenching hardness: HRC60± 2, inner hole for fine grinding Ra value 0.4;
4. Diffluencece combing, backflow parts material: Imported SKD61 quenching hardness: Above HRC55 or double alloy structure;
5. Can proceed to plate hard chrome after nitriding screw surface; The thickness for chromeplate is 0.03-0.04mm;
6. The passagewaypart for all kinds of mould, the thickness for plating hard chrome is 0.05-0.08, Polishing fine-coarse degree reach Ra value 0.4-0.2;