Pipa dada paipu welded ati itọju igbona otutu ni a maa n ṣe nipasẹ alapapo fifa irọbi tabi alapapo ina.Awọn paramita imọ-ẹrọ akọkọ jẹ líle dada, líle agbegbe ati ijinle Layer lile ti o munadoko.Idanwo lile le lo oluyẹwo lile Vickers, tun le lo Rockwell tabi lile Rockwell dada.Yiyan ti agbara idanwo (iwọn) jẹ ibatan si ijinle ti Layer lile ti o munadoko ati líle dada ti paipu welded.Nibi pẹlu awọn lile lile mẹta.
Brand idanimọ
Awọn ohun-ini kemikali: resistance otutu otutu, iwọn otutu kekere, resistance acid, alkalinity, resistance oxidation, bbl;
Iṣẹ ṣiṣe: fifẹ filamenti, ayewo fifọ, atunse atunṣe, yiyi pada, fifẹ yiyipada, torsion-ọna meji, idanwo hydraulic, idanwo flaring, atunse, crimping, fifẹ, imugboroja oruka, gigun oruka, Organisation microscopy, idanwo cupping, itupalẹ metallographic, ati be be lo;
Idanwo ti ko ni iparun: X-ray ti kii ṣe iparun, idanwo itanna eletiriki, ultrasonic, idanwo eddy lọwọlọwọ, idanwo jijo ṣiṣan oofa, idanwo titẹ sii, idanwo patiku oofa;
Awọn ohun-ini ẹrọ: agbara fifẹ, idanwo ikolu, aaye ikore, elongation lẹhin fifọ, idinku agbegbe, itọka lile (Rockwell hardness, Brinell hardness, Vickers hardness, Leeb hardness, Webster hardness);
Awọn ohun miiran: ẹya metallographic, awọn ifisi, Layer decarburized, microstructure akoonu ipinnu, ipata fa onínọmbà, iwọn ọkà ati ohun airi rating, kekere agbara be, intergranular ipata, superalloy microstructure, ga otutu metallographic be Duro.
Iṣiro afiwera, idanimọ ohun elo, itupalẹ ikuna, itupalẹ paati, itupalẹ kemikali

Ayẹwo ikuna: iṣiro fifọ, iṣiro ibajẹ, ati bẹbẹ lọ;

Onínọmbà eroja: wiwa deede ati itupalẹ manganese, oxygen, nitrogen, carbon, sulfur, silicon, iron, aluminum, phosphorous, chromium, vanadium, titanium, Ejò, cobalt, nickel, molybdenum, cerium, lanthanum ninu awọn irin, awọn alloy ati awọn ọja wọn. , ati irin alagbara, irin, kalisiomu, magnẹsia, zinc, tin, antimony, arsenic ati awọn miiran irin eroja tiwqn ati akoonu;