Suspension yoke plate hi overhead transmission line-a load-bearing connection hardware pawimawh tak a ni a, core function hrang hrang, insulator string suspension, multi-split conductor fixing, tension load distribution, leh tower-to-fitting hinge connection te a thawk a ni. Yoke plate structure hi awlsam tak angin lang mah se, a hnuaia-material strength, dimensional accuracy, galvanizing quality, mechanical properties, leh stress distribution-a chhiatna a awm chuan breakage, detachment, corona discharge, line tripping, emaw tower chim pawh a thlen thei a ni. Chuvangin, thil siam chhuah chhunga quality control hi a pawimawh hle.
Yoke plate quality control hian enfiah ai chuan venhimna hi dah pawimawh zawk tur a ni. Quality risks hi raw materials source atanga control tur a ni a, process standardization, parameter standardization, leh equipment automation hmanga mihring tihsual tihtlem a ngai a, qualified product thlan nan final inspection rinchhan lovin. Key indicator te chu hole diameter, hole spacing, flatness, galvanized layer thickness, leh plate-te destructive load te chu a then khatin enfiah tur a ni a, chu chuan himna atana hlauhawm awm thei zawng zawng a ti bo thei ang. Steel plate furnace number, batch, processing equipment, operator, leh inspection data atanga finished product delivery thlengin full-chain traceability neih theih a ni. Tunah chuan hei hi chipchiar takin kan rawn tarlang dawn a ni:
Suspension yoke plate-a thil hman ber chu high-strength low-alloy structural steel Q355, Q420, S355JR, leh A572 Gr50 te a ni tlangpui a, heavy-duty product thenkhatah chuan cast steel parts an hmang thung. Raw materials quality hi yoke plate chakna leh dam chhung atan a pawimawh hle a, incoming inspection khauh tak kalpui a ngai a ni. Steel mill-a material certificate, furnace number, chemical composition, leh mechanical property te chu finfiah a ni. Direct-reading spectrometer hmangin steel plate batch tin sample nan carbon equivalent leh harmful element content chu standard a pel lo tih finfiah a ni a, high-strength steel chu low-strength steel hmanga thlak a nih loh nan. Batch tin atanga sample te chu tensile test, cold bending test, leh impact test atan lak a ni a, chu chuan yield strength Re 355MPa aia tam emaw, a tlukpui emaw, tensile strength Rm 470-630MPa, fracture hnua elongation A 21% aia tam emaw, a tlukpui emaw, leh impact energy Akv -40 degree-a 34J aia tam emaw, a tlukpui emaw a nih leh nih loh enfiah a ni. Steel plate chunglam chu a chhe, delamination, oxide scale tam lutuk, rust, leh scratches te enfiah a ni a; thickness tolerance chu ±0.3mm chhungah control a ni a; leh a sei zawng leh a zau zawng dimension te hian blanking allowance a tlin.
Suspension yoke plate hi CNC flame cutting, plasma cutting, emaw laser cutting hmanga tan a ni tlangpui. Blanking quality hian a hnu lama machining allowance leh appearance a nghawng nghal vek a ni. Cut hmain program error avanga batch scrap awm loh nan CNC program, drawing dimension leh hole coordinate te chu double-check a ni. Cutting precision chu control a ni a, dimensional tolerances ±0.5mm, perpendicularity error 0.5mm/m aia tlem emaw a tlukpui emaw, gap langsar lo, a sir a chim, emaw a lum lutuk a, cut surface roughness chuan standard a tlin a, crack, deep grooves, slag inclusions, leh porosity awm lo, stress concentration sources avoiding. Blank batch tin chu traceability a awm theih nan furnace batch number, model leh batch number te ziah a ni. Quality inspector te hian batch tin tan first-piece inspection, intermediate inspection, leh final inspection an nei a, dimension, appearance, leh cutting quality te an record thin. Machining process-ah hian qualified piece chauh kal phal a ni.
Machining hi Suspension Yoke Plate installation dikna, inthlak danglam theihna, leh stress distribution inang tlang taka neih theihna tura thil pawimawh tak a ni. A bik takin punching, drilling, reaming, boring, leh milling te a huam a ni. Hinge hole leh connecting holes te hi H12 tolerances ah strict takin machine hmanga siam a ni a, hole diameter error te chu 0 atanga +0.2mm inkar ah control a ni a, hei hian ball head, mounting plate, UB mounting plate, leh pin te nen a inmil thei ang. Hole center distance error hi ±0.3mm aia tlem emaw, a tlukpui emaw a ni a, double/multiple insulator string-a uneven stress awm loh nan hole symmetry, parallelism, leh coaxiality te chu khauh taka control a ni. Plate flatness pum pui chu 0.5mm/m aia tlem emaw, a tlukpui emaw a ni a, hei hian installation load inang lo leh twisting leh deformation avanga local stress tam lutuk a awm loh nan a pui a ni. Hole wall-ah hian stress concentration leh corona risk a awm loh nan scratch, step, leh burrs a awm lo. Process zawng zawngah hian batch consistency a awm theih nan CNC punching machine leh machining center te hman a ni. Tools te chu thlak fo thin a ni a, compensation parameters te chu real time in calibrate in dimensional drift. 100% dimensional inspection hi oblong holes, irregular holes, leh complex hole systems multi-split connecting plates hmanga tih a ni.
Hot-dip galvanizing hi pawn lama hun rei tak hman thin suspension yoke plate nunna kawng a ni a, a bik takin tuipui kama salt spray, industrial pollution, temperature leh humidity sang, leh ultraviolet radiation awmna hmunah te, galvanizing quality hian direct-in corrosion resistance lifespan a tichiang a ni. Rust leh scale uluk taka tihbo hi a pawimawh hle a, hydrogen embrittlement emaw, rust paih kim loh emaw ven nan acid treatment tam lutuk leh tling lo pahnih hi pumpelh tur a ni. Flux concentration, temperature, leh immersion time stable vawn reng hian zinc coating adhesion uniform a siam a, missed area leh peeling a veng thei. 450℃leh 480℃inkar temperature control khauh tak neih a pawimawh a; temperature hniam lutuk chuan coating te tak te leh adhesion tha lo tak a thlen a, temperature sang lutuk chuan coarse grains a thlen a, steel-ah brittleness a tipung bawk. Plate thickness leh dimension a zirin siamthat a ngai a, chu chu a chhung leh pawnah zinc coating inang tlang a nih theih nan a ni. Galvanizing laiin steel plate-ah hian thermal deformation tlem a awm thei a, final dimension leh tolerance-te chu standard a tlin theih nan siamthat a ngai a ni. Siamthat nan hian hydraulic leveling machine hman a ni a; chhungril lama chhiatna awm lo turin forceful hammering khap tlat a ni. Correction hnuah flatness, dimensions, leh hole position te chu re-inspect a ni a, crack, pit, coating chhiatna a lo lang lo tih enfiah a ni.
