Siv thiab Classification ntawmHlau Grit
Steel grit yog angular, siab -hardness metallic abrasive uas nws cov ntawv thov tseem ceeb rau kev ntxuav ntawm hlau, ntxiv dag zog, ua ntej- kho rau txheej thiab plating, thiab hnav- tiv taus engineering. Nws raug cais los ntawm cov khoom siv, hardness, particle loj, cov duab thiab cov txheej txheem tsim khoom kom haum rau cov xwm txheej sib txawv. Cov ntsiab lus yog raws li nram no:
I. Core Applications
Hlau Nto ntxuav thiab xeb tshem tawmSiv rau descaling castings, tshem tawm oxide nplai los ntawm forgings, thiab derusting steel phaj / steel qauv. Xeb, roj stains thiab cov txheej qub raug tshem tawm ntawm kev txhaj tshuaj blasting lossis xuab zeb blasting los tsim lub hauv paus rau cov txheej txheem tom ntej. Nws yog feem ntau siv rau hauv kev saib xyuas cov nkoj, txuas hniav thiab cov khoom siv tshuaj.
Surface Strengthening thiab Hloov KhoTsim cov seem compressive kev nyuaj siab ntawm lub workpiece nto los ntawm kev txhaj tshuaj blasting, txhim kho qaug zog thiab hnav tsis kam. Nws yog qhov tsim nyog rau cov khoom tseem ceeb xws li lub zog, lub caij nplooj ntoos hlav, bearings thiab crankshafts kom ntev lawv lub neej kev pab cuam.
Ua ntej-Kev kho rau Txheej thiab PlatingUa kom lub roughness ntawm cov hlau nto los txhim kho txheej adhesion thiab xyuas kom muaj kev tiv thaiv los ntawm -corrosion los ntawm cov txheej. Nws yog siv nyob rau hauv ua ntej - cov txheej txheem kev kho mob rau txheej thiab plating nyob rau hauv lub teb ntawm tsheb manufacturing, engineering machinery thiab steel qauv.
Hnav-resistant Engineering thiab cov khoom siv hauv tsevNtxiv rau cov pob zeb / mortar hnav- cov khaubncaws sab nraud povtseg (piv txwv li, thee bunkers, hoppers, chutes) los txhim kho compressive thiab cuam tshuam. Nws kuj tseem siv rau kev txiav thiab sib tsoo cov pob zeb zoo nkauj xws li marble thiab granite.
Sib tsoo thiab polishingHaum rau kev sib tsoo thiab polishing kho vajtse, iav, pob zeb, thiab lwm yam. Qee qhov siab -precision steel grit tuaj yeem siv rau hauv kev ua tiav ntawm nws pib cav blocks, nti vaj tse thiab lwm yam khoom kom ua tiav qhov yuav tsum tau ua tiav.
Cov ntawv thov tshwj xeeb muajUa haujlwm zoo li metallurgical deoxidizer, siab - cov khoom siv kub, lossis rau kev ntxuav hauv cov kav dej thiab ntxuav pwm.
II. Classification System
1. Kev faib tawm los ntawm cov khoom siv thiab cov txheej txheem tsim khoom
| Hom | Material & Manufacturing txheej txheem | Cov yam ntxwv ua haujlwm | Daim ntawv thov Scenario |
|---|---|---|---|
| Cam khwb cia hlau Grit | Ua los ntawm melting khib nyiab steel, atomizing, crushing, quenching thiab tempering | Hardness HRC 45–55, nruab nrab toughness, tus nqi siab -kev ua tau zoo piv | Casting descaling, steel derusting, ua ntej -kev kho rau txheej thiab plating |
| Alloy Steel Grit | Ntxiv nrog rau alloying ntsiab xws li chromium, molybdenum thiab npib tsib xee | High hardness (HRC 58-65), zoo heev hnav tsis kam, zoo low -kub toughness | Cua zog yees, qis-kub pipelines, mining machinery |
| Bearing Steel Grit | Ua los ntawm cov kabmob steel seem nrog tshwj xeeb quenching thiab tempering | Hardness HRC 60–65, hnav-tiv taus, muaj zog ntxiv zog | Txhim kho ntawm precision Cheebtsam xws li iav thiab bearing rings |
| Angular Hlau Grit | Khaws ntau cov npoo (Ntau dua lossis sib npaug rau 8) tom qab crushing | Muaj zog txiav quab yuam, siab tu efficiency | Tshem tawm cov tuab oxide nplai, pob zeb txiav |
2. Kev faib tawm los ntawm Hardness (GB/T 18838.3)
| Qib Hardness | Code | Hardness Range (HRC) | Yam ntxwv | Daim ntawv thov Scenario |
|---|---|---|---|---|
| Siab Hardness | GH/H | 52–60 | Ceev ceev ceev, kuj siab crushing tus nqi | Kev tshem tawm sai ntawm tuab xeb thiab oxide nplai |
| Nruab nrab Hardness | GP / P | 45–52 | Balanced toughness thiab kev pab lub neej, siab versatility | Tsis tu ncua derusting, descaling, ua ntej -kev kho rau txheej thiab plating |
| Tsawg Hardness | GL/L | 40–45 | Qhov tsawg kawg nkaus kev puas tsuaj, uniform roughness | Ntxuav thiab ntxiv dag zog rau qhov tseeb thiab nyias -cov khoom ua haujlwm phab ntsa |
3. Kev faib tawm los ntawm Particle Loj (GB/T 18838.3 Standard)
Cov qib particle loj muaj xws li 2, 3, 4, 7, 10, 12, 14, 17, 20, 25, thiab lwm yam, sib xws rau qhov loj me ntawm kwv yees li 0.2-3.0 hli. Coarse grit yog siv los tshem tawm cov tuab oxide nplai thiab vuam slag, nruab nrab grit rau kev tu, thiab nplua grit rau kev ua haujlwm zoo thiab polishing.
4. Kev faib tawm los ntawm Cov Duab
Angular Hlau Grit: Multi-angular tom qab crushing, muaj zog txiav quab yuam, haum rau xeb tshem tawm, descaling thiab ntxiv dag zog.
Rounded steel phaj: Ntug passivated tom qab tempering, ua rau muaj kev puas tsuaj tsawg kawg nkaus, muaj feem xyuam rau nyias -cov phab ntsa workpieces thiab cov uas yuav tsum tau ua kom tiav nto.
5. Kev faib tawm los ntawm Qib Zoo
Qib hwm: Tsawg impurity cov ntsiab lus, tsis tshua muaj porosity, uniform particle loj, haum rau aerospace thiab siab -kawg tsheb tsim.
Qib I: Kev ua haujlwm ruaj khov, siv dav hauv kev tsim khoom lag luam.
Kawm Qib: Ua tau raws li qhov yuav tsum tau ua kom huv si, siv rau kev ntxuav ntawm cov qauv hlau zoo tib yam thiab cov castings.
III. Xaiv Qhov Tseem Ceeb
Match Workpiece Khoom thiab Lub Hom Phiaj: Xaiv GP nruab nrab- nyuaj grit rau carbon steel workpieces; GL qis- nyuaj grit lossis rounded grit rau siab -lub zog steel / precision Cheebtsam; angular grit los yog GH siab - nyuaj grit rau tshem tawm tuab oxide nplai los yog txiav pob zeb.
Particle Loj Matching: Coarse grit (piv txwv li, Qib 25) rau tuab xeb / oxide nplai; nruab nrab grit (piv txwv li, Qib 10, 12) rau kev tu tsis tu ncua; nplua grit (piv txwv li, Qib 2, 3) kom zoo ua ntej- kho thiab polishing.
Xa mus rau Standards: Ua raws li GB/T 18838.3, SAE J827, thiab lwm yam., thiab xyuas cov ntsiab lus ntawm carbon (0.85%–1.20%), manganese thiab silicon kom muaj qhov sib npaug ntawm hardness thiab toughness.
