Data Teknis
Reference data untuk engineers dan buyers specifying pengecoran kontinu tabung cetakan tembaga dan cetakan components: material properties, taper design, chrome pelapisan, tolerances, pendinginan, inspection dan an ordering checklist. nilai adalah umum unless a pelanggan standar adalah agreed.
tembaga Material Properties
umum nilai untuk three tembaga grade bekas in kami cetakan tabung. tepat figures depend on material condition, heat treatment dan berlaku standar; bersertifikat nilai adalah supplied dengan material certificate.
| Property | TP2 / Cu-DHP | CuAg0.1 | CuCrZr |
|---|---|---|---|
| Designation | Phosphorus deoxidized tembaga (C12200 / CW024A) | tembaga dengan kandungan perak (C10700-type) | tembaga kromium-zirkonium (C18150 / CW106C) |
| Main alloying element | P 0.015–0.040 % | Ag 0.08–0.12 %, P 0.004–0.012 % | Cr 0.30–1.20 %, Zr 0.03–0.30 % |
| Thermal konduktivitas (20 °C), typical | ≈ 330–350 W/m·K | ≈ 360–380 W/m·K | ≈ 300–330 W/m·K |
| Electrical konduktivitas, typical | ≈ 85–90 % IACS | ≈ 95–98 % IACS | ≈ 75–85 % IACS |
| Softening / recrystallization temperature | ≈ 250–320 °C | ≈ 330–380 °C | ≈ 450–500 °C |
| Hardness (working condition), typical | ≈ 80–110 HB | ≈ 85–115 HB | ≈ 120–160 HB |
| Tensile strength, typical | ≈ 250–320 MPa | ≈ 260–330 MPa | ≈ 400–500 MPa |
| Density | 8.9 g/cm³ | 8.9 g/cm³ | 8.9 g/cm³ |
| Strengthening | Cold work | Cold work + Ag solid solution | Precipitation hardening (Cr, Zr) |
| Typical use | Standard billet casting | High casting speed, higher thermal load | Bloom moulds, panjang campaigns, cetakan plates |
Ranges compiled dari dipublikasikan tembaga alloy data; not a jaminan. Tentukan Anda diperlukan standar (GB, EN, ASTM) in order.
Internal Taper Design
baja shell shrinks as it moves down cetakan. tabung's bagian dalam profile follows yang shrinkage so shell stays in kontak dengan tembaga; too little taper reduces perpindahan panas, too much causes friction dan sticking. taper adalah machined ke Anda caster's kecepatan pengecoran, penampang dan baja grade.
tunggal taper
Constant taper, typically 0.6–1.0 %/m. Simple, untuk lower kecepatan pengecorans.
ganda taper
Steeper dekat meniscus, flatter di bawah. Common on billet casters.
Multi-taper
Three atau more segmen approximating shell shrinkage kurva.
parabolik
Kontinu curve matching shrinkage; Terbaik untuk high-speed Pengecoran.
Convex / custom
cembung dinding atau OEM-specific profiles reproduced dari Anda gambar teknik.
| Parameter | Typical range / note |
|---|---|
| Total taper (top ke exit) | 0.6–1.2 %/m tergantung on penampang dan speed; larger untuk small penampang dan high speed |
| Corner radius | R3–R12 mm umum untuk billet; ke gambar teknik |
| Casting radius | R3000–R15000 mm; tabung curvature must equal machine radius exactly |
| Meniscus level | Typically 80–120 mm below tabung top; affects taper start |
permukaan bagian dalam Plating
| Item | Specification |
|---|---|
| Standard coating | Hard chrome, electrodeposited |
| Ketebalan | 0.08–0.12 mm (80–120 µm), kami standar; 0.06–0.20 mm atas permintaan |
| Hardness | ≈ 800–1000 HV |
| Alternative | nikel-krom (Ni lapisan dasar + Cr) untuk masa pakai lebih lama dan daya rekat lebih baik |
| finishing permukaan sebelum plating | Ra ≤ 0.8 µm, polished |
| Coverage | lengkap working permukaan, seragam sepanjang tabung panjang |
| Re-plating | aus tabung dapat be stripped, re-machined dan dilapisi ulang |
Dimensional Tolerances
| Dimension | Typical tolerance |
|---|---|
| Inner penampang (top / exit) | ±0.10 mm |
| Ketebalan dinding | ±0.20 mm |
| Panjang | ±0.5 mm |
| Taper | ±0.05 %/m |
| Casting radius | Deviation ≤ 0.3 mm over tabung length |
| Straightness / twist | ≤ 0.2 mm |
| Corner radius | ±0.5 mm |
| permukaan bagian dalam roughness | Ra ≤ 0.4 µm setelah plating |
lebih ketat tolerances tersedia ke gambar teknik. Tolerances adalah verified on a CMM dan reported per tabung.
pendinginan & slot air
| Item | Typical |
|---|---|
| air gap (tabung ke jaket) | 3–5 mm annular gap, atau machined slot air |
| Water velocity | 6–12 m/s sepanjang tabung wall |
| Water flow, billet cetakan | ≈ 80–150 m³/h depending on penampang |
| Inlet water temperature | ≤ 40 °C; ΔT typically 5–10 °C |
| Water pressure | 0.6–1.0 MPa at cetakan |
| slot air | Number, depth dan position machined ke caster gambar teknik |
pendinginan parameters belong ke caster design; we machine tabung dan air jaket ke match them.
Inspection & Documentation
| Item | Method / document |
|---|---|
| Material | Mill certificate; spectrometer check dari Cu, P, Ag, Cr, Zr |
| Inner penampang & taper | CMM measurement at 5+ levels, report per tabung |
| Casting radius | Radius gauge / CMM |
| Ketebalan dinding | Ultrasonic atau micrometer at 8 points |
| Chrome thickness | Eddy-current / XRF gauge, min. 6 points |
| Surface | Visual + roughness tester (Ra) |
| Hardness | Brinell / Vickers on sample atau tabung end |
| Water jacket / assembly | Pressure dan leakage test, fit check |
| Documents | Inspection report, material certificate, packing list, photos sebelum packing |
Ordering Checklist
apa we need ke penawaran dan memproduksi a tabung cetakan tembaga correctly. marking on Anda lama tabung (e.g. "150×150×900 R6000") atau caster gambar teknik usually covers most dari it.
- Cast penampang (mm atau inch) dan corner radius
- Casting machine radius (R4000 / R5000 / R6000 / R9000 …)
- tabung panjang dan meniscus position
- Ketebalan dinding
- Taper jenis dan nilai, atau "as per gambar teknik"
- tembaga grade: TP2 / Cu-DHP, CuAg0.1 atau CuCrZr
- Plating: krom keras (thickness) atau Ni-Cr
- slot air: number, size, position (atau water jacket drawing)
- Top / bottom flange atau fixing details
- kecepatan pengecoran, baja grade, caster OEM dan model
- Jumlah dan diperlukan delivery date
- Destination port dan Incoterm (FOB / CIF / DAP)
Unit Conversion
100 mm = 3.94 in · 130 mm = 5.12 in · 150 mm = 5.91 in
800 mm = 31.5 in · 812 mm = 32.0 in · 900 mm = 35.4 in
R6000 = 236.2 in (19.7 ft) · R9000 = 354.3 in (29.5 ft)
R10000 = 393.7 in (32.8 ft)
1 W/m·K = 0.578 BTU/(h·ft·°F) · 1 µm = 0.00004 in
°F = °C × 1.8 + 32
kirim Anda spesifikasi
Fill in apa you memiliki dari checklist; kirim gambar teknik ke sales@coppermouldtube.com atau WhatsApp. kami engineer confirms remaining parameters dan quotes dalam satu hari kerja.