WCB, a ɛyɛ carbon dade a wɔde gu ade a ɛne ASTM A216 Grade WCB hyia no, fa ɔhyew a wɔde yɛ adwuma a wɔahyɛ da ayɛ mu na ama wɔanya mfiridwuma mu su a wɔhwehwɛ, nsusuwii a ɛyɛ den, ne ɔhyew a ɛko tia. Ase hɔ no yɛ nkyerɛkyerɛmu a ɛkɔ akyiri a ɛfa ɔhyew a wɔde yɛ adwuma a wɔtaa yɛ ma WCB hoYD7A1X-16 na ɛwɔ hɔ Nwansena Valvenneɛma a wɔde gu mu:
.1. Nneɛma a wɔde yɛ ɔhyew a edi kan.
- .Botaeɛ: Sɛnea ɛbɛyɛ a wɔbɛma ɔhyew a ɛkɔ soro no ayɛ ketewaa na wɔasiw mpaapaemu ano bere a wɔde ɔhyew a ɛkɔ soro sa yare a edi hɔ no.
- .Kwan: Wɔde nkakrankakra ma nneɛma a wɔde gu mu no yɛ hyew wɔ fononoo a wɔahyɛ so mu ma ɛyɛ hyew a ɛyɛ300–400°C (572–752°F) na ɛyɛ hyew..
- .Nneɛma Titiriw a Wɔde Di Dwuma: Wɔma ɔhyew dodow kɔ so yɛ50–100°C/dɔnhwerew (90–180°F/dɔnhwerew) .sɛnea ɛbɛyɛ a wɔbɛhwɛ ahu sɛ ɔhyew no kyekyɛ pɛpɛɛpɛ.
.2. Austenitizing (Nneɛma a ɛyɛ nea ɛfata) ..
- .Botaeɛ: Sɛnea ɛbɛyɛ a microstructure no bɛyɛ biako no, siesie aburow kɛse, na wobɛpete carbides.
- .Kwan: .
- Wɔma nneɛma a wɔde gu mu no yɛ hyew ma ɛyɛ hyew a ɛyɛ austenitizing a ɛyɛ890–940°C (1634–1724°F) na ɛyɛ hyew..
- Wɔde kura saa ɔhyew yi mu maaNnɔnhwerew 1–2 wɔ 25 mm (1 inch) biara mu wɔ ɔfã no mu duru musɛnea ɛbɛyɛ a wɔbɛhwɛ ahu sɛ wɔbɛyɛ nsakrae a edi mũ wɔ fase no mu.
- Wɔma ɛyɛ nwini wɔ mframa a ɛda hɔ mu (normalizing) mu kodu dan mu hyew mu.
.3. Tempering a wɔde hyɛ obi so.
- .Botaeɛ: Sɛnea ɛbɛyɛ a wobeyi nhyɛso a aka no afi hɔ, ama nea ɛyɛ den no atu mpɔn, na ama microstructure no agyina.
- .Kwan: .
- Bere a wɔayɛ no sɛnea ɛsɛ awie no, wɔsan de castings no yɛ hyew kodu ɔhyew a ɛyɛ hyew a ɛyɛ590–720°C (1094–1328°F) na ɛwɔ hɔ..
- Wɔde ahyɛ saa ɔhyew yi mu maNnɔnhwerew 1–2 wɔ mm 25 (nsateakwaa 1) biara mu.
- Wɔde mframa nwini anaasɛ wɔde fononoo mu nwini wɔ ɔkwan a wɔahyɛ so na amma adwennwen foforo ansi.
.4. Nhwehwɛmu a Wɔyɛ wɔ Ayaresa Akyi.
- .Botaeɛ: Sɛ yɛbɛhwɛ sɛ wodi ASTM A216 gyinapɛn ahorow so.
- .Kwan: .
- Mfiri sɔhwɛ (sɛ nhwɛso no, tensile ahoɔden, yield ahoɔden, hardness).
- Microstructural analysis de hwɛ hu sɛ ɛyɛ pɛ na sintɔ biara nni hɔ.
- Dimensional checks de si so dua sɛ ɛyɛ den wɔ ɔhyew akyi ayaresa.
.Anamɔn a Wobɛpaw (Asɛm pɔtee) ..
- .Adwennwen a Ɛma Adwennwen Fi Hɔ: Wɔ geometries a ɛyɛ den ho no, wobetumi ayɛ adwennwen-ahomegye kyinhyia foforo wɔ600–650°C (1112–1202°F) na ɛyɛ hyew.sɛnea ɛbɛyɛ a wobeyi nhyɛso a aka a efi mfiri anaa welding mu ba no afi hɔ.
- .Onwini a Wɔhyɛ So: Wɔ thick-section castings ho no, wobetumi de onwini a ɛyɛ brɛoo (sɛ nhwɛso no, fononoo mu onwini) adi dwuma bere a wɔreyɛ tempering no na ama ductility ayɛ kɛse.
.Nneɛma Titiriw a Ɛsɛ sɛ Wosusuw Ho.
- .Fononoo mu Wim Tebea: Neutral anaasɛ oxidizing kakra atmosphere na asiw decarburization ano.
- .Ɔhyew a Ɛyɛ Pɛpɛɛpɛ: ±10°C abodwokyɛre na ama wɔahwɛ ahu sɛ nea efi mu ba no hyia.
- .Nwoma a wɔde kyerɛw: Full traceability of ɔhyew ayaresa parameters (bere, ɔhyew, onwini dodow) ma quality awerɛhyem.
Saa adeyɛ yi hwɛ hu sɛTWS concentric nwansena valvenipaduaD341B1X-16 na ɛwɔ hɔwɔ WCB castings mu no di ASTM A216 ahwehwɛde ahorow a ɛfa tensile ahoɔden (≥485 MPa), yield ahoɔden (≥250 MPa), ne elongation (≥22%) ho dwuma, na ɛma ɛfata ma ɔhyew ne nhyɛso a ɛkorɔn a wɔde di dwuma wɔ valve, pɔmpɛ, ne piping nhyehyɛe mu.
FiriTWS VALVE A ƐWƆ HƆ, obi a ne ho akokwaw wɔ nneɛma a wɔyɛ murɔba a wɔte ase concentric ntontom valve YD37A1X na ɔkyerɛwee, aponkɛse valve, Y-strainer a wɔyɛ.
Bere a wɔde bɛkyerɛw: Apr-02-2025
