Hei hi corrosion awmna hmun leh a awmna hmunah a innghat a ni. Surface rust tenau te hian hman dan pangngaiah nghawng a nei lo tlangpui a, mahse deep corrosion a awm emaw, zinc coating a chhe vek a, base material a corrode emaw a nih chuan product chu service atanga lakchhuah emaw thlak nghal emaw a ngai a ni.
A corrosion laka invenna mechanism chugalvanized steel wire rope hmanga siam a nia chunga zinc layer awm chu sacrificial anode anga thawkin inner steel wire te humhim turin a innghat a ni. Zinc layer chu zawi zawiin a ei zo emaw, a chhiat emaw chuan steel wire substrate chu a rust tan ang.
Corrosion Degree thliar hranna leh hman dan tehna
| Corrosion Level a awm | Hmuh theih dan (Visual Characteristics) te | Hman theihna | Thiltih tur rawtna |
|---|---|---|---|
| Light Corrosion (Lei chunglam Rust Spots) a awm thei. | A chung lamah chuan reddish-brown rust spot theh darh a lang a, mahse zinc coating chu a tam zawk chu a la awm reng thung. Rust hian steel wire core chhungah a lut lo. | ✔ Hman theih | Anti-rust oil emaw grease emaw hmang la, routine inspection tih tam lehzual rawh. |
| A rilru a buai em em a, a rilru a hah em em bawk a. | Rust patches chu a darh zel a. Steel wire chung lamah rust layer hmuh theih a lo awm a, mahse wire diameter-ah chuan tlahniam lian tham a awm lo va, wire chu a bendable reng a ni. | ▲ Fimkhur takin hmang la, load rating chu downgrade rawh | Chipchiar taka enfiah nghal tur (eg, diameter tehna, bend test). Load mamawh a tlem a, hman hun rei lote-a hman a nih chuan hnathawh dan uluk takin enfiah rawh; chutiang a nih loh chuan thlak a tha. |
| Hriselna nasa tak (Sectional Corrosion Loss) 1.1. | Rust scale chu a flake off a, steel wire chung lamah pitting leh pits a awm ta a ni. Wire diameter chu hmuh theihin a tlahniam a, wire chhe pawh a lo lang thei bawk. | ✗ Hman khap tlat a ni | Hman dan kha titawp nghal la, steel wire rope zawng zawng chu thlak leh rawh. |
Critical Warning Signs (Wire chhe lo pawhin Retired A ngai)
- Wire chunglama pitting emaw grooves hmuh theih → Cross-sectional loss a awm a, chu chuan chakna nasa takin a tlahniam a ni.
- Wire rope chu a khauh a, a hmin avangin a ben harsa → Internal corrosion nasa tak leh lubrication failed a nih thu a tarlang.
- Rust scale chu lightly tapped a nih chuan a lianin a flake off → Zinc coating leh base metal pahnih hi a chhe vek tawh.
- Hmun chhe tawha wire chhe tawh zawng zawng → Corrosion leh wire chhe tawhte inzawm chuan failure nasa takin a ti chak ang a, risk sang tak a ni.
Practical Hman dan tur rawtna
| Dilna tur Scenario a ni | Rust a lo awm hnuah Corrosion Tolerance a awm thei |
|---|---|
| Lifting & hoisting, passenger elevator, cable car te pawh a awm bawk | Zero tolerance a ni: Red rust a awm chuan evaluate nghal tur a ni; moderate emaw higher emaw corrosion a awm chuan decommissioning nghal a ngai a ni. |
| In sakna tower crane, sakna hoist te | Light corrosion hi pawm theih a ni a, mahse thla khatah vawi khat tal enfiah a ngai a ni. |
| A tlangpuiin industrial towing & conveying a ni | Light corrosion hi pawm theih a ni a; moderate corrosion a awm chuan load operation tihtlem leh ruahman lawk thlak a ngai a ni. |
| Guy wire, lashing, fencing, non-load-bearing hmanna te a ni | Moderate corrosion hi hun rei lote chhung atan hman theih a la ni a, mahse himna chu ngaih pawimawh hmasak a ngai thung. |
Testing method chiang zawk emaw, hmanrua engtikah nge scrap tur tih hriat theihna tur tehfung table emaw i mamawh a nih chuan dilna angin kan pe thei ang.
