15CrMoG yakanyanya kudzvanywa simbi pombi yemhando yekusimbisa
15CrMoG simbi pombi imhando yepombi yesimbi isina musono, uye kuita kwayo kwakakwira zvakanyanya kudarika kwepaipi yesimbi isina musono. Nekuti iyi mhando yepombi yesimbi ine yakawanda Cr, yakakwira tembiricha kuramba, yakaderera tembiricha kuramba uye ngura kuramba haigoni kuenzaniswa nemamwe mapaipi esimbi isina musono, saka alloy pombi inoshandiswa zvakanyanya mupetroleum, indasitiri yemakemikari, simba remagetsi, boiler uye mamwe maindasitiri. .
Nheyo yekucheneswa kwehydrogen ne15CrMoG simbi pombi ndeyokuti kana iyo hydrogen inofanira kucheneswa ikaiswa mune rimwe divi re15CrMoG simbi pombi pa300-500 ℃, hydrogen inoshongedzwa pamadziro e15CrMoG simbi pombi. Nekuda kwekushaikwa kwemaerekitironi maviri mu4D electron layer yepalladium, inogona kuumba isina kugadzikana kemikari zvisungo nehydrogen (zvinoita pakati pepalladium nehydrogen zvinodzoreka). Pasi pekuita kwepalladium, hydrogen inoiswa ionized kuita mapurotoni ane radius ye 1.5 × 1015m, nepo lattice isingachinji yepalladium iri 3.88 × 10-10m (pa20 ℃), inogona kupfuura nepakati pe15CrMoG alloy simbi pombi. Pasi pekuita kwepalladium, mapurotoni anosanganiswa nemaerekitironi uye ogadzirazve mamorekuru ehydrogen, anobuda kubva kune rimwe divi re15CrMoG alloy simbi pombi. Pamusoro pe15CrMoG alloy simbi pombi, iyo isina kubatanidzwa gasi haigone kupfuura, saka 15CrMoG alloy simbi pombi inogona kushandiswa kuwana yakakwirira-kuchena hydrogen.
Kunyangwe palladium ine yakasarudzika permeability kune haidrojeni, palladium yakachena ine hurombo hwemagetsi zvimiro, nyore oxidation pakupisa kwakanyanya uye yakaderera recrystallization tembiricha, iri nyore kukanganisa uye embrittle 15CrMoG simbi pombi. Naizvozvo, yakachena palladium haigone kushandiswa senge permeability membrane. Kuwedzera huwandu hwakakodzera hweIB uye VIII zvinhu kune palladium kugadzira palladium alloy inogona kuvandudza ma mechanic properties ye palladium. 11. Seamless simbi pombi yemotokari half axle sleeve (gb3088-82) imhando yepamusoro kabhoni structural simbi uye alloy structural simbi inopisa-yakakungurutswa seamless simbi pombi yekugadzira mota hafu yeakisi sleeve uye drive axle housing. Mune palladium alloy, sirivheri inosvika 20-30%, uye zvinyorwa zvezvimwe zvikamu (zvakadai segoridhe, nezvimwewo) zvisingasviki 5%.
① Iwo manhamba maviri ekutanga kwegiredhi resimbi anomiririra kabhoni yesimbi, inoratidzwa sezviuru zvishoma zveavhareji kabhoni yemukati, senge 40Cr.
②Iwo makuru alloying zvinhu musimbi, kunze kweyega ega microalloyed elements, anowanzo kuratidzwa mune mashoma muzana. Kana avhareji alloy yemukati ari pasi pe1.5%, kazhinji chete chiratidzo chechinhu chinomakwa mugiredhi resimbi, asi zvirimo hazvina kunyorwa. Nekudaro, kana zviri nyore kuvhiringika mumamiriro ezvinhu akakosha, nhamba "1" inogonawo kucherechedzwa mushure mechiratidzo chechinhu, senge simbi mamakisi "12CrMoV" uye "12Cr1MoV". Iro chromium yezvinyorwa zvekare ndeye 0.4-0.6%, uye iyo yekupedzisira ndeye 0.9-1.2%, uye zvimwe zvikamu zvakafanana. Kana mavhareji ezvinyorwa zve alloy elements ari ≥ 1.5%, ≥ 2.5%, ≥ 3.5% ... Zvinyorwa zvicharatidzwa mushure mechiratidzo chechinhu, chinogona kuratidzwa se 2, 3, 4 ... Etc. Somuenzaniso, 18Cr2Ni4WA.
③Vanadium V, titanium Ti, aluminium Al, boron B, isingawanzo pasi RE uye zvimwe zvinhu zvealloy musimbi ndezve microalloyed elements. Kunyangwe zvirimo zvakaderera zvakanyanya, zvinofanirwa kuramba zvichimakwa mugiredhi resimbi. Somuenzaniso, mu 20mnvb simbi. 0.07-0.12% yevanadium uye 0.001-0.005% yeboron.
④ Simbi yemhando yepamusoro ichaiswa chiratidzo ne "a" pakupera kwegiredhi resimbi kuti isiyanise kubva kune yakawanda yemhando yepamusoro simbi.
⑤Kune alloy structural simbi yechinangwa chakakosha, giredhi resimbi inotungamirwa ne (kana suffix) kumiririra chiratidzo chechinangwa chesimbi. Semuenzaniso, 30CrMnSi simbi yeriveting screw inomiririrwa se ml30crmnsi.
Alloy pombi uye isina musono pombi ine hukama uye mutsauko, uye haigone kuvhiringidzika. Alloy pombi imhando yepombi isina musono. Kunyangwe isingakwanise kusanganiswa, pombi isina musono inosanganisira alloy pombi.
Alloy pombi inotsanangurwa sesimbi pombi zvinoenderana neyakagadzirwa zvinhu (kureva zvinhu). Sezvinoratidzwa nezita racho, ipombi yakagadzirwa nealloy; Seamless pombi inotsanangurwa zvinoenderana nekugadzirwa kwesimbi pombi (isina musono seam). Izvo zvakasiyana nenyere isina musono pombi isina musono, kusanganisira yakatwasuka musono welded pombi uye spiral pombi.
