Galvanized steel wire hi sakna, hardware, wire mesh, power leh telecommunication, agriculture leh ran vulh, highway guardrail, leh steel rope siamnaah te hman a ni nasa hle. Product quality hian project himna, service life, leh rintlakna a nghawng nghal vek a; chuvangin, thil siam chhuah zawng zawngah quality standard khauh tak, inpumkhat leh quantifiable tak tak hman a ngai a ni.
Galvanized steel wire atana raw material bulpui ber chu hot-rolled low-carbon steel wire rod a ni a, a tlangpuiin Q195, Q215, Q235, SAE 1006, SAE 1008, SAE 1010, leh SWRCH18A te ang chi thil hmanga siam a ni. Raw material quality hi thil siam zawh tawha mechanical property, surface quality, leh zinc plating adhesion tichiangtu ber a ni. Carbon awm zat hian steel wire chakna, a toughness leh drawability direct-in a nghawng a, khauh taka control a ngai a ni: C 0.15% aia tlem emaw a tlukpui emaw, Si 0.07% aia tlem emaw a tlukpui emaw, Mn0.30%~0.60%, P 0.035% aia tlem emaw, S 0.035% aia tlem emaw, 0.035% aia tlem emaw. P leh S te hi bawlhhlawh hlauhawm tak an ni a; level tam lutuk chuan brittleness a tipung thei a, draw fracture a thlen thei a, zinc plating adhesion a ti tha lo thei bawk. Chuvangin, upper limits khauh taka zawm a pawimawh hle.
Mechanical property hian Galvanized Steel Wire hmanna hmun a hril fo thin. Tensile strength 290~420MPa, elongation 25% aia tam emaw, a tlukpui emaw, area tihtlem 55% aia tam emaw, a tlukpui emaw, leh hardness HRB 60~75 kan mamawh a ni. Wire rod hian segregation, delamination, shrinkage cavities langsar tak a nei tur a ni lo; chutiang a nih loh chuan a draw laiin a chhe thei a, a siam zawh tawhah pawh a chhe thei bawk. User tam tak chuan Galvanized Steel Wire surface quality chungchangah hian thil khauh tak tak an nei a. Professional manufacturer-te chuan factory an chhuahsan hunah a chunglam chu a hrual, fold, scar, burrs, iron oxide scale thick lutuk, rust spot, oil stain, leh bawlhhlawh awm lo turin an enfiah tur a ni. Diameter tolerance chu ±0.20mm a ni tur a ni a, ellipticity chu diameter tolerance 60% aia tlem emaw a tlukpui emaw a ni tur a ni. Wire rod chunglam rust nasa tak nei chu siam chhuah khap a ni a; chutiang a nih loh chuan pickling a kim lo ang a, zinc layer adhesion pawh a tha lo ang.
Pretreatment thil tum ber chu oxide scale, rust, leh oil te paih chhuah a ni a, steel wire surface thianghlim leh activated a nih theih nan molten zinc leh steel substrate inkara metallurgical bond tha tak a awm theih nan a ni. Galvanized Steel Wire siam chhuah chhunga pretreatment tha lo chuan direct-in zinc layer peeling, plating tling lo, leh a rawng a tidanglam thei a ni.
Degreasing leh oil lakchhuahna quality standard: Alkali concentration 5%~10%, temperature 60~80℃, treatment hun 3~8min. Inspection standard: Steel wire chung lamah oil stain emaw saponification residue emaw awm lo, continuous leh uniform water film, shrinkage cavities awm lo.
Acid pickling leh rust tihbo dan quality standard: Hydrochloric acid pickling hman tlanglawn tak. Concentration, temperature leh time te hi khauh taka control a ngai a ni. Hydrochloric acid concentration 12%~18%, temperature room temperature~45℃, hun chhung 5~15min. Pickling hnuah a chunglam chu silver-gray metallic luster a lang vek tur a ni a, oxide scale residue a awm lo tur a ni a, over-corrosion a awm tur a ni lo. Over-corrosion hi a chung lama pitting, hydrogen embrittlement, emaw blackening emaw a lan dan atanga teh a ni a; hmuh a nih chuan a chunglam chu scrap a ngai a ni.
Tui silfai quality standards: Acid pickling hnuah multi-stage countercurrent rinsing a ngai a. Stage hmasa berah chuan tui thianghlim luang chhuak hmangin free acid paih chhuah a ni. Stage hnihnaah chuan pH 4 aia tam emaw, a tlukpui emaw hmangin acid chu fluxing tank chhunga luh loh nan hman a ni. Inspection standard: A chung lamah acid residue emaw iron salt adhesion emaw a awm lo.
Fluenting treatment quality standards: Flux hi zinc chloride a ni tlangpui + Ammonium chloride mixed solution hian secondary oxidation a veng a, zinc bath wettability a tichak bawk. Kan mamawh chu concentration 150-250 g/L, temperature 50-70℃, pH 4.0-5.5, treatment time minute 1-3, drying temperature 120-200℃, leh standard drying time of complete surface dryness, free of moisture, salt stains, and uneven crystallization kan mamawh a ni. Flux solution chu filter fo tur a ni a, chu chuan slag a paih chhuak thei a; chutiang a nih loh chuan zinc slag leh zinc nodules a lo awm ang a, Galvanized Steel Wire chunglam quality a nghawng ang.
Galvanizing hi hot-dip galvanizing leh electro-galvanizing-ah then a ni a, an pahnih quality standard pawh a inang lo hle a, hei vang hian foreign trade inspection-a thil pawimawh ber a ni.
Hot-dip galvanized steel wire quality standards: Hot-dip galvanizing hian zinc layer thick tak leh corrosion resistance rei tak a siam a, ISO 1460, ASTM A641, leh GB/T 20492 te nen a inmil a, raw material zinc ingots hi 99.99% zinc thianghlim a ni a, GB/T 470. Zinc nen a inmil a ni bath temperature chu 440~465℃a ni a, aluminium content chu 0.18%~0.22% a ni a, zinc bath bawlhhlawh chu 0.02% Fe aia tlem emaw a tlukpui emaw a ni a, recycled zinc hman khap a ni bawk.
Electro-galvanized steel wire quality standards: Electro-galvanized steel wire hian a chunglam chu a hrual a, a zinc layer a thim zawk a, precision product atan a tha hle. Zinc layer rit zawng hi 10~40g/m2 a ni a, a thuk zawng chu 1.4~5.6μm a ni a, a chunglam chu a eng a, a inang tlang a, a kang lo va, a thim lo va, a brittleness pawh a hniam a, hei vang hian bending leh forming atan a tha hle. A corrosion resistance hi hot-dip galvanizing aiin a chak lo zawk a, corrosive tamna hmun atan pawh a tha lo.