1. Mfitiase Gyinapɛn & Grades (GB / T 8263 Abrasion Resistant White Cast Dade) .
Nneɛma a wɔtaa de ma a ɛne no hyia ma mfiridwuma mu ahyɛmma:
Cr15 → KmTBCr15Mo (15% chromium molybdenum a ɛdɔɔso chromium dade a wɔde ayɛ)
Cr20 → KmTBCr20Mo (20% chromium molybdenum a ɛdɔɔso chromium dade a wɔde ayɛ)
Cr26 → KmTBCr26 (26% chromium a ɛdɔɔso dade a wɔde ayɛ, molybdenum a ɛba fam anaasɛ enni mu)
Nnuru a Wɔde Di Dwuma (Mass Fraction) .
表格
| Nneɛma a Wɔde Yɛ Adwuma | Cr | C | Mo | Si | Mn | Efĩ ahorow P/S | Cr/C Nkyɛmu |
|---|---|---|---|---|---|---|---|
| Cr15 na ɛwɔ hɔ | 14.0~18.0% | 2.8~3.4% | 0.4~0.8% | 0.4~1.0% | 0.5~1.2% | Ennu anaasɛ ɛne 0.05% yɛ pɛ . | 4.5~6 |
| Cr20 na ɛwɔ hɔ | 18.0~22.0% | 2.7~3.3% | 0.5~1.0% | 0.4~1.0% | 0.5~1.2% | Ennu anaasɛ ɛne 0.05% yɛ pɛ . | 5~7 |
| Cr26 na ɛwɔ hɔ | 24.0~28.0% | 2.2~3.0% | 0.3~0.6% | 0.3~0.9% | 0.4~1.0% | Ennu anaasɛ ɛne 0.04% yɛ pɛ . | 6~8 |
Nnyinasosɛm titiriw: Chromium a ɛkɔ soro no ma M1C3 chromium carbide hard phases pii ba. Cr/C ratio a ɛwɔ 4 ne 8 ntam no hwɛ hu sɛ carbide kyekyɛ yɛ pɛ na ɛkɔ so, na ɛkari pɛ wɔ wear resistance ne toughness.
2. Metallographic Structure & Mfiridwuma mu Nneɛma a Wɔde Toto Ho
Nneɛma abiɛsa no nyinaa yɛ martensite a wɔahyɛ no den, M6C3 hard carbides ne austenite nketewa a wɔakora so. Microhardness a carbides du HV1800 ~ 2200, som sɛ core wear-resistant nnompe.
Adwumayɛ ho Nneɛma a Wɔde Yɛ Adwuma Akyi Standard Heat Treatment
表格
| Adwumayɛ ho Nkyerɛkyerɛmu | Cr15 Liner a wɔde fa nsu mu | Cr20 a wɔde hyɛ mu | Cr26 Nneɛma a wɔde hyɛ mu |
|---|---|---|---|
| Rockwell Nneɛma a Ɛyɛ Den HRC | 58~61 | 59~62 | 60~65 |
| Nkɛntɛnso a ɛyɛ den k (J/cm2) . | Ɛboro anaasɛ ɛne 7 yɛ pɛ | Ɛboro 8 anaasɛ ɛne no yɛ pɛ | Ɛboro anaasɛ ɛne 8.5 yɛ pɛ |
| M₇C3 Carbide dodow a ɛwɔ mu no fã ketewaa bi | 22%~28% | 28%~35% | 35%~45% |
| Relative Wear Ɔsom Nkwa Nkwa (Benchmark) . | 100% (Nkyerɛkyerɛmu) . | 140%~180% | 220%~300% |
| Erosion & Corrosion a ɛko tia | Adantam | Papa | Asɛnka nni ho |
| Maximum Ɔhyew Ɔbrɛ Adwumayɛ Temp | Ennu digrii 300 anaasɛ ɛne no yɛ pɛ | Ennu digrii 350 anaasɛ ɛne no yɛ pɛ | Ennu digrii 400 anaasɛ ɛne no yɛ pɛ |
Nsonsonoe a Ɛwɔ Adwumayɛ mu Nteaseɛ mu
Cr15: Chromium a ɛba fam koraa a carbides kakraa bi na ɛwom. Toughness a ɛba fam kakra nanso raw material ho ka a ɛba fam sen biara. Ɛyɛ papa ma low-abrasion adwumayɛ tebea a ɛka di kan.
Cr20: Chromium dodow a ɛkari pɛ ne aguadi a ɛyɛ papa-off wɔ wear resistance, toughness ne ɛka ntam. Nneɛma titiriw a wɔde yɛ liner a wɔde di dwuma kɛse wɔ semɛnte ne nnwuma a wotu fagude mu.
Cr26: Chromium a ɛdɔɔso ma carbide dodow kɔ soro kɛse, na ɛde top-tier hardness, wear resistance, high-temperature resistance ne acid-alkali erosion resistance ma. Ade biako pɛ a enye wɔ nneɛma a wɔde yɛ nneɛma ho ka a ɛkɔ soro.
3. Standard Heat Treatment Process (Ɛho Hia Ma Ɔsom Nkwa) .
Adeyɛ a edi mũ a wɔde dum ne tempering yɛ ahyɛde ma chromium liners a ɛdɔɔso. Sɛnea-cast liners du HRC40~46 nkutoo, a nea ɛko tia ɔsɛe no nnu 60% wɔ nneɛma a wɔde ɔhyew-ayɛ ho adwuma a ɛfata mu.
Cr15 (KmTBCr15Mo) Quenching: Kura wɔ 940 ~ 980 digrii nnɔnhwerew 2 ~ 4, onwini ne ahofama quenchant; Tempering: Low-temperature temper wɔ 220 ~ 280℃nnɔnhwerew 3 ~ 6 na ama emu adwennwen afi hɔ; Final hardness HRC Ɛboro anaasɛ ɛne 59 yɛ pɛ.
Cr20 (KmTBCr20Mo) Quenching: Kura wɔ 980 ~ 1030 digrii nnɔnhwerew 2 ~ 5; Tempering: Ɔhyew a ɛba fam-ɔhyew a ɛyɛ hyew wɔ 230~290℃; Nea eye sen biara a ɛyɛ den HRC60 ~ 62.
Cr26 (KmTBCr26) Quenching: Kura wɔ 1010 ~ 1060℃nnɔnhwerew 3 ~ 6 na apete koraa carbides a ɛto so abien; Tempering: Kura wɔ 250 ~ 300 digrii nnɔnhwerew 4 ~ 8; Stable hardness a ɛboro HRC62 so. Wobetumi ama tempering temperature akɔ soro kakra ama high-temperature service scenarios de ama thermal stability akɔ soro.
Adeyɛ Taboos: Wɔabara abɔde mu mframa a ɛma onwini dum ne tempering a ɛboro digrii 400 koraa, a ɛtew denden ne abrasion a ɛko tia so kɛse.
4. Adwumayɛ Tebea, Nnwinnade & Nneɛma a Wɔde Di Dwuma ma Liner Grade Biara
4.1 Cr15 Chromium Liner a Ɛkorɔn (Sikasɛm mu Adesua) .
Nsɛm a ɛfa ho: Abrasion a ɛba fam, ball mills nketewa-diameter, nneɛma a ɛyɛ mmerɛw, nneɛma a wɔyɛ no bere ne bere mu Nnwinnade: Ball mills nketewa Φ Ennu anaasɛ ɛne 2.4m yɛ pɛ, fango afiri, anhwea a ɛyɛ fɛ nketewa a wɔde twitwa, low-erosion chutes Nneɛma a wɔde yɛ: Fango, limestone, shale, dɔte ne nneɛma afoforo a ɛyɛ mmerɛw-a ɛyɛ den ores Mfasoɔ: Ɛka a ɛba fam koraa wɔ adetɔ ho, emu yɛ hare, ɛka a wɔbɔ wɔ nsakraeɛ ho a ɛba fam Mfomsoɔ: Ɔsom nkwa nna tiaa wɔ high-hardness ore ne kɔ so full-load adwumayɛ ase; Ɛnyɛ nea ɛfata ma wet grinding ne acidic slurry Ɔsom Nkwa a wɔhwɛ kwan: 3 ~ 5 mfe, a ɛne 60% ~ 70% pɛ som nkwa nna a Cr20 liners wɔ tebea horow a ɛyɛ pɛ mu yɛ pɛ
4.2 Cr20 High Chromium Liner (Amansan nyinaa Mainstream Grade, Guadi mu kyɛfa a ɛkorɔn sen biara) .
Nsɛm a ɛfa ho: Mfinimfini abrasion, dry & wet dual-atirimpɔw, gyinapɛn semɛnte / mining adwumayɛ tebea, kari pɛ wear resistance & ɛka Nnwinnade: Φ2.4 ~ 3.6m semɛnte raw aduan afiri, slag afiri, dade ore ball afiri, impact crusher mu liners, medium-sized silo chutes Raw Nneɛma: Granite, dade ore, quartz sand, cement clinker, aggregate sandstone Mfasoɔ: Ɛkari pɛ a ɛko tia nwene ne den, ɛtumi gyina nsunsuansoɔ a ɛwɔ mfimfini ano, ɛne dry & wet grinding hyia, ɛka adwumayɛ a ɛyɛ papa Mfomsoɔ: Ɛba fam sene Cr26 liners wɔ ultra-hard ores (basalt, emery sand) ase ne kɔ so yɛ hyew-temperature erosion Expected Service Nkwa: 5 ~ 8 mfe, 1.5 ~ 1.8 mpɛn tenten sen Cr15 liners
4.3 Cr26 Chromium Liner a ɛkorɔn (High-End Wear Resistant Grade ma Abrasion a emu yɛ duru)
Nsɛm a ɛfa ho: Abrasive wear a emu yɛ den, ɔhyew a ɛkorɔn, acidic slurry, akɛse-diameter mills, kɔ so yɛ a high-hardness raw materials Nnwinnade: akɛse mineral processing ball mills Φ Kɛse sen anaasɛ ɛyɛ pɛ 3.6m, vertical mill liners, high-temperature clinker mills, metallurgical sinter chutes, high-corrosion wet grinding equipment Raw Materials: Basalt, high-silicon quartz, hard metal ores, high-temperature clinker, sulfur-a acidic slurry wom Mfaso: Top wear resistance, superior high-temperature oxidation resistance, acid & alkali erosion resistance, thermal a eye kyɛn so ɔbrɛ adwumayɛ, free from rapid groove wear Mfomso: Kɔ soro upfront adetɔ ho ka; Inferior to thick-fasu a ɛkorɔn manganese dade ase nkɛntɛnso a emu yɛ duru fi oversized bulk nneɛma a wɔhwɛ kwan sɛ Ɔsom Nkwa: 7 ~ 10 mfe, 2 ~ 3 mpɛn tenten sen Cr15 ne 1.4 ~ 1.7 mpɛn tenten sen Cr20 wɔ adwumayɛ tebea koro no ara ase
5. Liner Nhyehyɛe & Key Casting Mfiridwuma
Molding Adeyɛ: Ayera foam pɛpɛɛpɛ casting anaa resin anhwea casting ma wɔaka abom a ɛyɛ asorɔkye liners, anammɔn a wɔma so liners, flat liners ne awiei kata liners. Cr26 ade no wɔ shrinkage rate kɛse, enti nkuku hwehwɛ sɛ shrinkage allowance foforo.
Anti-Cracking Design: Wɔde molybdenum ne vanadium afra liners a ne kɛse boro 60mm mu de asiesie aburow nhyehyɛe. Wɔde awɔw a ɛwɔ mu no gu liners akɛse so na amma carbide no apaapae na ayɛ mmerɛw.
Installation Matching: Bolt ntokuru a wɔadi kan asie ama-afã biako a wɔde besi ananmu. Sɛ wɔde toto manganese dade liners a ɛkorɔn ho a, chromium liners a ɛkorɔn betumi ayɛ 15% ~ 25% thinner wɔ pɛyɛ a ɛko tia gyinapɛn ahorow ase, a ɛtew mill adesoa ne tumi a wɔde di dwuma so.
6. Nneɛma a Wɔpaw no Ntɛmntɛm Nkyerɛkyerɛmu Table
表格
| Adwumayɛ Tebea | Abasobɔde a Wɔpɛ | Abasobɔde foforo a wɔde ma | Wɔnkamfo Nkyerɛ |
|---|---|---|---|
| Fango afiri ketewaa bi, limestone a wɔyam bere ne bere mu | Cr15 na ɛwɔ hɔ | Cr20 na ɛwɔ hɔ | Cr26 (Ɛka a ɛkɔ soro a ɛho nhia) . |
| Standard semɛnte owiyammo, dade ore & aggregate adwumayɛ kwan | Cr20 na ɛwɔ hɔ | Cr26 (Bere tenten-bere a edi mũ-tumi a wɔyɛ) . | Cr15 (Ɛsɛ sɛ wɔtaa sesa) . |
| Miner processing mill kɛseɛ, high-temp clinker, acidic wet grinding, high-silicon hard rock | Cr26 na ɛwɔ hɔ | Cr20 a wɔayɛ no den | Cr15 na ɛwɔ hɔ |
| Coarse grinding bin a ɛwɔ ore bulk kɛse & nkɛntɛnso a emu yɛ duru | Manganese Dade a Ɛkorɔn | Bimetallic Composite a Ɛkorɔn Chromium Liner | Pure Cr15/Cr20/Cr26 (Ɛyɛ mmerɛw sɛ ntwea so bɛpaapae) |
| Normal-temperature dry grinding, sikasɛm nhyehyɛe a anohyeto wom a wɔyɛ | Cr15 na ɛwɔ hɔ | Cr20 na ɛwɔ hɔ | - |
7. Adwumayɛ & Nsiesiei Ho Nsɛm a Wɔakyerɛw
Nsunsuansoɔ Anohyeto: Nkyekyɛmu mmiɛnsa no nyinaa yɛ nneɛma a ɛtumi gyina nsunsuansoɔ a ɛba fam- ano. Wɔ coarse grinding bins a feed bulk size boro 100mm, wɔde manganese dade a ɛkorɔn anaa bimetallic composite liners di kan na amma chromium liners a ɛkorɔn no mu apaapae.
Nneɛma a Atwa Yɛn Ho Ahyia a Ɛporɔw: Cr26 yɛ ahyɛde ma sulfur-a ɛwɔ mu ne acidic slurry; Cr15 hu amane wɔ pitting corrosion a ɛma abrasion yɛ ntɛmntɛm.
Ɔhyew Anohyeto: Cr26 nkutoo na ɛkura adwumayɛ a ɛyɛ den wɔ bere tenten-ɔhyew a wɔde yɛ adwuma a ɛboro digrii 350 ase. Bere tenten-ɔhyew a ɛkorɔn-ɔhyew som ma Cr15 brɛoo denam tempering so, na ɛma wear loss mmɔho abien.
Installation & Maintenance: Wɔabara welding ne twa chromium liners a ɛkorɔn, efisɛ welding a ɛkorɔn-temperature ma mpaapaemu ba. Fa wear-resistant castable hyɛ liners ntam nsonsonoeɛ ma bere a wode rehyɛ mu no na woakwati nneɛma a ɛbɛsɛe wɔ bolts so.
8. Ka & Mfaso a Ɛkɔ Anim Ho Nsɛm a Wɔaboaboa Ano
Cr15: Sika a wɔde hyɛ mu a ɛba fam sen biara nanso wɔtaa to mu de si ananmu. Ɛfata ma adwumayɛbea nketewa-a ɛwɔ tumi a ɛhwere bere a wɔde yɛ adwuma no sua.
Cr20: Ɛka a ɛyɛ ne nyinaa a ɛyɛ papa, nhyehyeɛ a ɛyɛ pɛpɛɛpɛ ma semɛnte adwumayɛbea 80% ne atopaeɛ nketewa a ɛwɔ mfimfini-.
Cr26: Bere biako-bere adetɔ bo a ɛkɔ soro nanso ɛbɔɔ nea wɔde besi ananmu kyinhyia no mmɔho abien. Adwumayɛ ne nsiesie ho ka a ɛba fam koraa ma nhama akɛse a wɔde yɛ nneɛma a ɛkɔ so yɛ adwuma, na ɛtew sikasɛm mu adehwere a bere a wɔde yɛ nneɛma no gyae de ba no so kɛse.
