Galvanized steel yoke plate hi overhead transmission line leh substation structure-a load-bearing connection fittings pawimawh tak a ni. Anni hian a bul berah chuan core functions, load transfer, insulator string suspension, leh conductor fixation te an nei a ni. An mechanical property, dimensional accuracy, corrosion resistance, leh structural stability te hian line kalpui dan himna chu direct-in a hril a ni. Hot-dip galvanizing hian workpiece chu dual corrosion protection-physical shielding leh cathodic protection- a pe mai bakah high-temperature immersion, chemical reaction, leh rapid cooling process-a steel substrate, dimensional accuracy, surface condition, leh mechanical property te nasa takin a nghawng bawk. Heng effects te hian galvanized steel yoke plate hnathawh tha tak takte chu a tichak ber a ni.
Load-bearing fitting angin galvanized steel yoke plate-a core mechanical property chu tensile strength, yield strength, elongation, impact toughness, leh hardness te hi a ni. Thil hman tlanglawn ber berte chu Q235B, Q355B, ASTM A36, leh A572 Gr50 te an ni a, chung zawng zawng chu low-carbon structural steel an ni. Hot-dip galvanizing temperature chu 440–460℃, steel recrystallization temperature aia hniam a ni a, chuvangin base material chakna chu a tlahniam nasa lo hle. Tensile strength danglamna hi a tlangpuiin<5%, generally maintaining factory-set levels. Yield strength fluctuates slightly but remains generally stable. Due to the high-temperature tempering effect, internal stress is slightly released, and plasticity is slightly improved. Short-term high-temperature holding causes a slight decrease in surface hardness, which does not affect the overall load-bearing capacity.
Galvanized steel yoke plate hian hole diameter, hole spacing, flatness, perpendicularity, leh overall dimension te mamawhna sang tak a nei a. Hot-dip galvanizing hi dimensional deviation thlentu ber a ni a, hei hi zinc layer thickness, thermal stress deformation, leh cooling shrinkage te a ni. Production lai hian plate thickness atana kan standard requirement chu plate thickness 6mm aia tam emaw, a tlukpui emaw tan chuan zinc layer thickness average>=86μm a ni a, local thickness chu 100–120μm thleng a ni. Dimensional increase hi a sir lehlamah 0.08–0.12mm vel a ni a, a pumpuiah dimensional increase 0.24mm aia tlem emaw, a tlukpui emaw a ni. Tolerance phalsak chhungah chuan hole diameter chu 0.16–0.24mm in a tlahniam a, standard bolt assembly-ah nghawng a nei tlem hle. Uniform zinc layer adhesion avang hian hole spacing center position chu a bul berah chuan a danglam lo va, deviation 0.1mm aia tlem emaw, a tlukpui emaw a awm.
Hot-dip galvanizing hian galvanized steel yoke plate chunglam dinhmun chu direct-in a tichiang a, a hmel, a hrualna, zinc nodules leh burrs te a nghawng a ni. Silver-gray zinc layer inang tlang tak a siam a, chu chuan a lan dan a inmil tha hle a, machining mark, scratches tenau, leh oxidation te a khuh a, export product appearance standard a tlin a, white rust a ti tlem a, surface thianghlim zawk a siam bawk.
Galvanized steel yoke plate hi kum 20–30 chhunga dam theih tura siam a ni tlangpui. Corrosion resistance hi core indicator a ni a, hot-dip galvanizing hi corrosion resistance tihchangtlunna atana thutlukna siamtu a ni a; tih theih dang a awm lo. Dual corrosion protection mechanism, dense zinc layer nei hian corrosive media H2O, O2, Cl−, leh SO2 te chu a isolate a, zinc chu a duh zawkin corroding a ni a, steel substrate chu rust lakah a venghim a ni. Hot-dip galvanizing hnuah chuan yoke plate hian boruak pangngai, tuipui kama salt spray boruak, industrial acid ruahtui tlakna hmun, leh pawn lam boruak lum leh UV sang tak a tuar thei a ni.
Transmission line te hi thli tleh, icing load, temperature stress, leh conductor vibration te hian hun rei tak chhung an tawk thin. Connecting plate te hian fatigue resistance tha tak an mamawh a, hot-dip galvanizing hian hei hi nghawng lian tak a nei a ni. Hot-dip galvanizing hian processing atanga internal stress a ti bo a, fatigue crack initiation awm theihna a ti tlem a, surface pitting corrosion a titawp a, pitting-induced fatigue cracking a veng a, microstructure a stabilize a, long-term service chhungin dimensional change a awm loh nan a pui bawk.
Hot-dip galvanizing hian galvanized steel yoke plate-a structural load-bearing performance a tichhe lo va; chu ai chuan, corrosion resistance leh operational reliability nasa takin a tichangtlung a, hei vang hian product value tihchian nana thil pawimawh tak a ni.
