1. Fine drawing .
Cold drawing chu cold drawing machine hmangin metal pipe chu a lum lovin a ti lum lo. A thatna chu temperature sang taka tih a ngai lo va, a chhiatna chu residual stress hi a lian hle a, a rei lutuk thei lo bawk. Cold drawing hian toughness leh tensile strength a ti tha thei a, chu chuan mechanical property tha zawk a hmu thei a ni.
Cold drawn seamless steel pipe hman dan:
round tube blank→heating→Piercing→Luingaling→Pickling→Multi-pass cold drawing→semi-a finished pipe treatment→straightening→hydraulic test (flaw detection).
Cold drawing kawng hnih:
Metals cold working dan hrang hrang pahnih a awm a. Pakhat chuan metal material tawp pahniha tension hman dan tur a sawi a, chu chuan tensile deformation a thlen a; A dang chuan thil chu mold hole hmanga a chhuah theih nâna thil chu a tawp khata pulling force hman dân a kawk a ni. mold aperture chu material diameter aia te zawk a ni. Cold drawing process hian material chu tensile deformation bakah extrusion deformation a nei a, cold drawing process chu a tlangpuiin special cold drawing machine-ah an ti thin. Materials processed by the second type hian a chi khatnain a process tawh materials aiin property tha zawk a nei a.
A hmanna ber: Motor, motorcycle, refrigeration hmanrua, hydraulic parts, pneumatic cylinder, leh customer dangte tan chuan steel pipe-a precision, smoothness, cleanliness, leh mechanical property atana mamawh sang tak nei te tan.
2. Rolling tih zawh .
Finish-rolled pipe hi cold-rolled precision steel pipe an ti bawk a, hei hi seamless steel pipe siam chhuahna a ni.
Finish rolled tube hmanga thil awm dan:
(1) Cold-rolled precision steel pipe hian tolerance leh dimensional accuracy sang tak a nei a, product accuracy chu ±0.05mm-ah control a ni.
A chhung leh pawn lam bangte chuan finish tha tak an nei a, a chung lamah chuan oxide layer an nei lo.
(2) Cold-rolled precision steel pipe-te property kimchang tak chu a tha hle a, pressure sang tak, cold-bending, flaring, leh flattening te chu cracking leh wrinkling awm lovin a tuar thei a, complex deformation hrang hrang leh mechanical processing te pawh a tawk thei bawk.
(3) Precision seamless pipe tihhmasawn leh hman hian steel a humhim thei a, processing efficiency a ti tha thei a, processing procedure leh equipment investment a ti tlem thei a, cost a humhim thei a, machining hours nasa takin a humhim thei a, production capacity leh material utilization a tisang thei a, product quality a ti tha thei bawk. Cut costs a ni.
Finishing tube hman dan:
Cold-rolled precision steel pipe hi motor, motorcycle, electric lirthei, pneumatic cylinder, petrochemical, electric power, lawng, aerospace, bearings, pneumatic components, medium leh low pressure boiler leh field dang dangah te hman a ni nasa hle.
Eng ang cold-rolled pipe pawh ni se, annealing heat treatment a mamawh a, chu chuan multiple processing hnua stress lo chhuak chu a ti bo mai ni lovin, mechanical property a ti tha thei a, material hardness a ti tlem thei a, pipe chung lamah dense protective film a siam thei bawk a, chu chuan corrosion a veng thei a ni. nghawng.
Hangao Tech (Seko Machinery) hian seamless steel pipe hmanga heat treatment lama tawnhriat ngah tak a nei a. Kum tam tak chhung chu customer tam tak nen thawhhona thuk tak a nei a, production database tha tak a khawlkhawm bawk. Customer te tan production suggestion a pe thei a, pipe siam zawh tawhte dik leh yield a nih leh nih loh a enfiah thei bawk. air-cooled induction heating power supply kimchang tak nen, kan . Independent seamless pipe bright annealing furnace induction heat treating machine line hian energy hman a tihtlem bakah efficiency a ti tha a, hmanrua service life a ti rei bawk.
High-end industrial field hrang hrangah cold-rolled pipe hman a nih chhoh zel avangin high-end cold-rolled pipe mamawhna pawh a chak zawkin a chak zawk dawn a ni. Precision rolled tube chungchanga zawhna i neih chuan inbiak pawhna tur min zawt thei ang.
