Mfomso bɛn na ɛtaa ma valve castings ba?

1. Nneɛma a ɛwɔ stomata no

Eyi yɛ tokuru ketewaa bi a mframa no ayɛ a dade a ɛma ɛyɛ den no ntumi mfi dade no mu. Ne mu fasu no yɛ torotoro na mframa wom, a ɛwɔ tumi kɛse ma ultrasonic asorɔkye no, nanso esiane sɛ ɛyɛ kurukuruwa anaa ellipsoid titiriw nti, ɛyɛ point defect, a ɛka ne reflection amplitude. Mframa tokuru a ɛwɔ ingot no mu no yɛ petee ma ɛyɛ beae bi a sintɔ bere a wɔayɛ anaasɛ wɔabobɔw akyi, na mfaso wɔ so sɛ wobehu denam ultrasonic nhwehwɛmu so.

2. Retraction ne tokuru a ɛho ayɛ hare

Sɛ wɔma casting anaa ingot no yɛ nwini na ɛyɛ den a, ɛsɛ sɛ ne dodow so tew, na wontumi mfa dade a ɛyɛ nsu nka sintɔ a ɛyɛ tokuru no ho. Wɔfrɛ vovities akɛse ne nea ɛyɛ den sɛ shrinkage holes, na wɔfrɛ voids nketewa ne apetepete loose. Esiane mmara a ɛfa ɔhyew ntrɛwmu ne awɔw mu twetwe ho nti, ɛyɛ nea ɛyɛ den sɛ tokuru a ɛtwetwe no bɛtra hɔ, nanso ɛsono ne nsusuwii, ne kɛse ne ne gyinabea a ɛsono akwan horow a wɔfa so yɛ adwuma, na ɛbɛyɛ sintɔ bere a ɛtrɛw kɔ casting anaa ingot nipadua no mu no. Sɛ ingot no antwitwa tokuru a ɛtwetwe no mu yiye na ɛde ankɔ forging afã horow no mu a, ɛbɛyɛ tokuru a aka (residual shrinkage hole, residual shrinkage pipe).

3. Clip slag a wɔde twitwiw nneɛma

Slag a ɛwɔ smelting process mu anaasɛ refractory a ɛwɔ fononoo nipadua no so no yiyi kɔ dade a ɛyɛ nsu no mu, na wɔtwe kɔ casting anaa dade ingot no mu bere a wɔrehwie agu no, na ɛyɛ slag clamp sintɔ no. Slag mpɛn pii no ɛnyɛ nea ɛwɔ hɔ nkutoo, mpɛn pii no ɛwɔ tebea a ɛyɛ den mu anaasɛ ɛpetepete wɔ bun ahorow mu, ɛte sɛ volume defects nanso ɛtaa wɔ linearity pɔtee bi.

4. Nneɛma a wɔadi afra

Nneɛma a ɛyɛ adwuma wɔ smelting nhyehyɛe no mu (te sɛ oxide, sulfide, ne nea ɛkeka ho) -non-metallic inclusions, anaasɛ nneɛma a wɔde aka ho wɔ nneɛma bi a ɛwɔ dade afã horow no mu no nwene koraa na ɛda so ara yɛ dade a ɛka ho, te sɛ density a ɛkorɔn, high melting point components-tungsten, molybdenum, ne nea ɛkeka ho.

5. Nsɛm a wɔka no foforo

Nkyekyɛmu a ɛwɔ casting anaa ingot mu no kyerɛ nneɛma a wɔpaapae mu a ɛba wɔ nneɛma a wɔkyekyɛ no pɛpɛɛpɛ wɔ dade a wɔde yɛ nneɛma anaasɛ dade a wɔde hyɛ mu no mu titiriw. Mfiridwuma su a ɛwɔ beae a mpaapaemu no wɔ no yɛ soronko wɔ mfiridwuma su a ɛwɔ dade matrix no nyinaa mu, na nsonsonoe a ɛboro gyinapɛn a wɔma ho kwan no so no bɛyɛ sintɔ.

6. Mpaapaemu a wɔtow gu

Mpaapaemu a ɛwɔ casting no mu no fi shrinkage stress a ɛwɔ dade onwini solidification boro ahoɔden a etwa to a ade no, ɛfa sɛnea casting nhyehyɛe ne casting nhyehyɛe no nsusuwii, na ɛsan nso fa mpaapaemu nkate a efĩ binom wɔ dade nneɛma (te sɛ sulfur a ɛdɔɔso, awɔw brittleness, phosphorus a ɛdɔɔso, ne nea ɛkeka ho). Wɔ spindle no mu no, mpaapaemu nso bɛba shaft crystal no mu, na wɔ billet forging a edi hɔ no mu no, ɛbɛkɔ so atra forging no mu sɛ forging no mu mpaapaemu.

Ɛno da nkyɛn a, Tianjin Tanggu Nsuo Nsɔano Valve Co., Ltd. yɛ mfiridwuma mu nkɔsoɔ elastic nkongua valve boa nnwuma, nneɛma no yɛrɔba nkongua wafer ntontom valve, lug ntontom valve, abien flange concentric ntontom valve, abien flangeeccentric ntontom valve a ɛyɛ nwonwa, kari pɛ valve, .wafer abien mprɛte nhwehwɛmu valve, Y-Strainer ne nea ɛkeka ho. Wɔ Tianjin Tanggu Water Seal Valve Co., Ltd., yɛde hoahoa yɛn ho sɛ yɛde nneɛma a edi kan a ɛne nnwuma gyinapɛn a ɛkorɔn sen biara hyia ma. Yɛn valve ne fittings ahorow pii nti, wubetumi anya yɛn mu ahotoso sɛ yɛde ano aduru a edi mũ bɛma wo nsu nhyehyɛe no. Di yɛn ho nkɔmmɔ nnɛ na sua pii fa yɛn nneɛma ho ne sɛnea yebetumi aboa wo.