Nnianim: "Standard" no vs. "Challenger" no.
Sɛ wo are fibea a wonya fi muD2 adwinnade dadewɔ adwuma a wɔyɛ nwini mu akwammisa ho no, ɛda adi sɛ woahyia asɛmmisa bi a ɛkɔ so daa afi wo adetɔ kuw anaa w’adwumawura hɔ:"So yebetumi de Cr12MoV adi dwuma mmom?"
Ɛyɛ asɛmmisa a ɛfata. Wɔ wiase nyinaa adwinnade dade gua so, titiriw bere a wonya fi aAdwinnade dade a wɔde ma China, wubehuCr12MoV nneɛmaa wɔtaa fa asɛm ka. Ɛte sɛ D2. Ɛyɛ den te sɛ D2. Nanso ɛbo a wɔbɔ no taa yɛ nea ɛba fam 20% kosi 30%.
So ɛyɛ afiri? Anaasɛ ɛyɛ mfiridwuma ho gyinaesi a nyansa wom?
Momma yɛnyɛ nokware: Wɔ high-stakes wiase a stamping ne punching, paw dade a ɛnteɛ betumi atoto wo production line. Nanso over-specifying (tɔ premium steel bere a wunhia) hyew sika.
Wɔ saa akwankyerɛ yi mu no, yɛrebɛbubu...Cr12MoV ne D2 ntamgye kyin. Yɛbɛhwɛ chemistry, real-wiase adwumayɛ sɛ apunching die nneɛma, ne nea enti a "D2 equivalent" label no yɛ nokware na ɛyɛ atoro.
Related Product: Explore our Cold Work Mold Steel Inventory >
Dɛn Pɛpɛɛpɛ ne Cr12MoV Ade?
To understand ntotoho no, ɛsɛ sɛ yedi kan kyerɛkyerɛ nea ɔsɔre tia no mu.
Cr12MoV nneɛmane Chinafo GB gyinapɛn din. Mmara no gyina hɔ ma:
- Cr12: 1 .~12% Chromium (Ɛkorɔn a ɛko tia nsɛe/ɔsɛe)
- Mo:Molybdenum (Nea ɛma ɛyɛ den) .
- V:Vanadium (Ahyɛnsode a ɛko tia) .
Mfiridwumayɛfo pii a wɔwɔ China akyi frɛ no aD2 a ɛne no sɛ nneɛma. Bere a eyi yɛ nkyerɛwde tiawa a mfaso wɔ so no, ɛnyɛ nokware koraa. Ɛyɛ papa sɛ wubesusuw wɔn sɛ wo nuanom mmarima sen sɛ wobɛyɛ mmanoma.
- D2 Adwinnade Dade (ASTM A681) .:Wiase nyinaa sika kɔkɔɔ gyinapɛn ma high-wear, mframa-hardening adwinnade dade.
- Cr12MoV (GB/T 1299) na ɛwɔ hɔ.:Chinafo pɔnkɔ a wɔyɛ adwuma wɔ fie no. Wɔyɛɛ no sɛnea ɛbɛyɛ a ɛbɛma adwumayɛ a ɛte sɛ D2 nanso ɛwɔ chemical composition a wɔayɛ no yiye ama mpɔtam hɔ nneɛma.
Nnuruyɛ Ho Nhwehwɛmu: Cr12MoV vs D2
Eyi ne baabi a the rɔba hyia kwan. Nsonsonoe a ɛda nneɛma bo ntamD2 nneɛma boneCr12MoV boɔɛnyɛ nkonyaayi-ɛba fam kɔ alloys a ne bo yɛ den a ɛwɔ melt no mu no so.
Momma yɛnhwɛ nneɛma abien a ɛma ɛka ne adwumayɛ kɔ so:Nneɛma a wɔfrɛ no Molybdenum (Mo) .neVanadium (V) a wɔfrɛ no Vanadium (V) ..
| Adeɛ | D2 Adwinnade a Wɔde Yɛ Dade | Cr12MoV Nneɛma a Wɔde Yɛ |
Nkɛntɛnso a Ɛwɔ Engineering So |
| Kabɔn (C) . | 1.40% - 1.60% | 1.45% - 1.70% |
Nnipa baanu no nyinaa yɛ-carbon a ɛkorɔn ma ɛyɛ den kɛse (60-62 HRC). |
| Chromium (Cr) a wɔde yɛ nneɛma . | 11.0% - 13.0% | 11.0% - 12.5% |
Wɔn baanu nyinaa ma ahoɔden a ɛko tia nkannare yiye sɛ wɔde toto dade a wɔde ngo-ma ɛyɛ den ho a. |
| Nneɛma a wɔfrɛ no Molybdenum (Mo) . | 0.70% - 1.20% | 0.40% - 0.60% |
D2 den kɔ akyiri wɔ blocks a ɛyɛ den mu. |
| Vanadium (V) a wɔfrɛ no Vanadium (V) . | 0.60% - 1.10% | 0.15% - 0.30% |
D2 wɔ carbides a ɛko tia wear-a ɛboro so kɛse. |
Nneɛma a Wɔde Kɔ:Ɛkame ayɛ sɛ D2 wɔ Molybdenum mmɔho abien na ɛboro Vanadium a ɛwɔ Cr12MoV no mmɔho abiɛsa. Eyi nti naD2 nneɛma bono korɔn-Ferro-Vanadiumno bo yɛ den. Nanso saa Vanadium a ɛboro so no ma carbides a ɛyɛ den a ɛyɛ adwuma te sɛ diamond nketenkete a ɛwɔ dade matrix no mu.
Punching Die Material a Ɛfata a Wɔpaw
Chemistry yɛ interesting, nanso ɛyɛ adwuma dɛn wɔ nsɛm ho amanneɛbɔ mu? Bere a worepaw apunching die nneɛma, worekari pɛNhyɛso a Ɛko Tia(bere tenten a anoano no kyɛ) vs.Toughness a ɛyɛ den(a ɛko tia chipping) vs.Ɛka.
Nsɛm a Ɛfa A: Nneɛma a Ɛyɛ Den / Abrasive
- Adwuma no:Worebɔ afã horow 1,000,000 afi dade a ɛnyɛ den ntama anaa silicon dade a ahoɔden kɛse-yɛ mu.
- Nkonimdifo: D2 Adwinnade a Wɔde Yɛ Dade.
- Adɛn:Dade a ɛnyɛ den yɛ nea ɛyɛ abrasive. Ɛdi dies. Vanadium a ɛdɔɔso wɔ D2 mu no ma wonya abrasion a ɛko tia a ɛho hia na ama nea wɔatwa no akɔ so ayɛ nnam. Sɛ wode Cr12MoV di dwuma wɔ ha a, wobɛma afiri no agyae ma ayɛ die no nnam mpɛn pii dodo, na ɛbɛkum wo ahoɔden.
Nsɛm tebea B: Nnyigyei a Ɛyɛ Mfinimfini / Nneɛma a Wɔde Di Dwuma
- Adwuma no:Wode dade a ɛnyɛ den (carbon steel) anaa aluminium reyɛ brackets 100,000.
- Nkonimdifo: Cr12MoV Nneɛma a Wɔde Yɛ.
- Adɛn:Dade a ɛyɛ mmerɛw yɛ mmerɛw. Wonhia D2 a ɛko tia wear a ɛboro so no. Cr12MoV bɛkura anoano no ntɛm ama saa volume yi. Plus, wo sie ~25% wɔ raw material ka.
Scenario C: Mprɛte a Ɛyɛ Den / Ahodwiriw a emu yɛ duru
- Adwuma no: Punching thick plates (>6mm) na ɛyɛ.
- Nkonimdifo: Ɛnyɛ biara.
- Adɛn:D2 ne Cr12MoV nyinaa yɛ "Ledeburitic" dade. Carbides a ɛyɛ den ahyɛ mu ma, na ɛma ɛyɛ mmerɛw. Wɔ adesoa a emu yɛ duru a wɔde bɔ shock ho no, ebia wɔbɛpaapae. Wɔ saa tebea yi mu no, ɛsɛ sɛ wohwɛ D3 anaa mpo shock-resistant grades te sɛ S7, anaasɛ ebia wobɛhwɛ sɛ Cr12MoV no wɔ toughness pa fi nea ɛfataɔhyew a wɔde sa yare.
"D2 Equivalent Material" Anansesɛm no
So Cr12MoV yɛ nokwareD2nsɛm a ɛne no sɛ?
- Wɔ dwumadi mu? Aane.Wɔ 70% a ɛwɔ general tooling applications mu no, wobɛtumi asesa D2 ama Cr12MoV na woanhu nsonsonoeɛ kɛseɛ wɔ adwumayɛ mu. Wɔde ɔhyew yɛ adwuma ma ɛyɛ den koro (58-60 HRC yɛ gyinapɛn ma abien no nyinaa).
- Wɔ nnuruyɛ mu? Daabi.Sɛnea yɛdaa no adi wɔ atifi hɔ no, ɛsono wɔn.
Pro Tip ma Adetɔfo:Sɛ aAdwinnade dade a wɔde ma Chinafa wo bo a ɛte sɛ nea eye dodo sɛ ɛbɛyɛ nokware ama "D2," hwɛ Mill Test Certificate (MTC). Sɛ Mo yɛ < 0.70% na V yɛ < 0.50% a, wɔretɔn wo Cr12MoV nanso wɔrefrɛ no D2. Wɔ Promisteel no, yɛkyerɛ nsonsonoe a ɛda abien no ntam pefee. Wo nya wha pɛpɛɛpɛt wotua ho ka.
Aguadi mu Nhwehwɛmu: D2 Nneɛma Bo vs. Cr12MoV Bo
Yɛnim sɛ ma yɛn clients wɔAmerika Kesee Fam, Mfinimfini Apuei, ne Asia Kesee Fam Apuei, ɛka a wɔbɔ ho akansi ho hia kɛse.
Bere a yentumi ntintim da biara da bo a wɔbɔ no tee wɔ ha (gua no sakra) no, nsusuwii a wɔtaa de di dwuma ni:
- Cr12MoV Boɔ:Momma yɛmfa eyi nhyɛ mfitiase index a ɛfa100.
- D2 Nneɛma a Wɔde Yɛ Adwuma Bo:Mpɛn pii no ɔtra index a ɛyɛ125 - 135.
- SKD11 (JIS Gyinapɛn): .Mpɛn pii no ɔtra ase wɔ130 - 140.
ROI Akontaabu no:Sɛ adwinnade no yɛ wo project cost nyinaa mu 5% pɛ, nanso adwinnade bi a entumi nyɛ adwuma yiye ma wo line no gyae nnafua 2 a, sɛe sika a ɛboro so no on D2. Sɛ woreyɛ disposable dies anaasɛ low-volume runs a,...Cr12MoV na ɛwɔ hɔsika a wode sie no kɔ wo mfaso a wunya so tẽẽ.
Awie
Enti, hena na odi nkonim the Cr12MoV ne D2 ntamɔko?
Egyina wo botae so. Sɛ worebɔ abɔmmɔ ama nkwa nna a ɛsen biara a wobɛwe wɔ stamping press a ɛyɛ ahoɔhare-a, .D2 Adwinnade a Wɔde Yɛ Dade da so ara yɛ ɔhene. Nanso sɛ wuhia nea wotumi de ho to so, ɛho ka-a ɛho ka sua apunching die nneɛmama nneɛma a wɔyɛ no nyinaa, .Cr12MoV nneɛmane nyansa, sikasɛm mu paw a ɛma wo dwumadi no kɔ so yɛ nea ɛfata.
Sɛ́ obi a wahyira ne ho soAdwinnade dade a wɔde ma China, Promisteel de abien no nyinaa sie. Yɛnhyɛ wo sɛ ntɔ grade a ne bo yɛ den sen biara; yɛboa wo ma wotɔnifaaba.
Wohia quote ma wo tooling adwuma a edi hɔ no?Sɛ́ ebia wuhia D2 adwumayɛ a ɛkorɔn anaasɛ Cr12MoV bo no, .Wo ne Promisteel nkasa Ɛnnɛ.Yɛde Flats, Rounds, ne Blocks a Ultrasonic Testing amanneɛbɔ a edi mũ ma.
