Hardfacing VuamHluav taws xob
Txheem: DIN 8555 (E7-UM-250-KPR)
Hom No.: TY-C BMC
Specification & Daim Ntawv Thov:
· Basic coated siab rov qab SMAW electrode
· Tag nrho cov qauv austenite.High workhardening thiab siab toughness.
· Nws yog tsim rau claddings ntawm qhov chaw uas muaj siab tshaj plaws thiab poob siab nyob rau hauv ua ke nrog rau abrasion.Surfacing tuaj yeem ua rau ntawm ferritic steel nrog rau austenitic nyuaj Mn-steel thiab cov pob qij txha ntawm hard Mn-steel tuaj yeem welded.
· Cov ntawv thov tseem ceeb yog nyob rau hauv kev lag luam mining thiab cement, railway hla, dredge twj, hydraulic xovxwm pistons, crusher ib feem cuam tshuam los ntawm cov ntxhia mos.
Chemical muaj pes tsawg leeg ntawm deposited hlau (%):
|
| C | Si | Mn | Cr | Ni | Mo | V | Fe |
| DIN | 0.5 - | - | 11.0 Nws 18.0 Nws | - | - 3.0 | - | - | Bal. |
| EN | 0.3 1.2 | - | 11.0 Nws 18.0 Nws | - 19.0 Nws | - 3.0 | - 2.0 | - 1.0 | Bal. |
| Hom | 0.6 | 0.8 ua | 16.5 ib | 13.5 Nws | - | - | - | Bal. |
Hardness ntawm deposited hlau:
| Raws li Welded (HB) | Ua hauj lwm tawv (HB) |
| 260 | 550 |
General yam ntxwv:
· Microstructure Austenite
· Machinability sib tsoo nkaus xwb
· Interpass temp.≤ 250 ℃
· Redrying Redry rau 2 h ntawm 300 ℃ ua ntej siv.
