Pane zvinhu zvitatu zvakakosha zvegiredhi 12.9 mabhaudhi (12.9 wedge anchor, 12.9 kuburikidza nebhaudhi): carbon steel wedge anchor, Stainless steel wedge anchor, uye mhangura.
(1) Carbon simbi (yakadai secarbon steel Wedge Anchor Bolts) Isu tinosiyanisa yakaderera kabhoni simbi, yepakati kabhoni simbi, yakakwira kabhoni simbi uye alloy simbi zvichibva pane kabhoni yemukati mune kabhoni simbi zvinhu.
1. Low carbon steel neC% <0.25% inowanzonzi A3 simbi muChina. Kunze kwenyika, ivo vanonzi 1008, 1015, 1018, 1022, nezvimwe.
2. Medium kabhoni simbi 0.25%
Alloy simbi: Wedzera alloy zvinhu kune yakajairwa kabhoni simbi kuti uwedzere zvimwe zvakakosha zvesimbi: senge 35, 40 chromium sirivheri, SCM435.
3. 10B38. Fangsheng screws anonyanya kushandisa SCM435 chromium-platinum alloy simbi, ine zvikamu zvikuru C, Si, Mn, P, S, Cr, uye Mo.
(2) Simbi isina tsvina (yakadai sesimbi isina tsvina yakakoswa tsvimbo). Giredhi rekuita: 45, 50, 60, 70, 80, kunyanya austenite (18% Cr, 8% Ni), yakanaka kupisa kupisa
Good corrosion resistance uye yakanaka weldability. A1, A2, A4 martensite uye 13% Cr vane hurombo husina kunaka hwekusaita ngura, kusimba kwepamusoro uye kupfeka kwakanaka kuramba. C1,C
2. C4 ferritic simbi isina tsvina. 18% Cr ine zvirinani forgeability uye yakasimba corrosion kuramba pane martensite. Parizvino, zvinhu zvinotengeswa kunze kwenyika pamusika zvinonyanya kugadzirwa muJapan.
Ravira. Zvinoenderana nedanho, rinonyanya kukamurwa kuita SUS302, SUS304 uye SUS316.
3) Mhangura. Zvishandiso zvinowanzo shandiswa indarira…zinc-copper alloy. H62, H65, uye H68 mhangura inonyanya kushandiswa sezvikamu zvakajairwa pamusika.
12.9 Kupesvedzera kwezvinhu zvakasiyana-siyana mune mabhoti zvinhu pane zvivakwa zvesimbi:
1. Carbon (C): Inovandudza kusimba kwezvikamu zvesimbi, kunyanya kupisa kwayo kupisa, asi sezvo kabhoni yemukati inowedzera, plastiki uye kuoma kunoderera.
Uye zvichakanganisa kutonhora kwekuita uye welding kuita kwezvikamu zvesimbi.
2. Manganese (Mn): Inovandudza kusimba kwezvikamu zvesimbi uye inovandudza kuoma kune imwe nhanho. Kureva kuti, kusimba kwekupinza kwakaoma kunowedzera panguva yekugadzirwa kwemoto.
Inogona zvakare kuvandudza mhando yepamusoro, asi yakawandisa manganese inokanganisa ductility uye weldability. Uye zvinokanganisa kutonga kwekupfeka panguva ye electroplating.
3. Nickel (Ni): Inovandudza kusimba kwezvikamu zvesimbi, inonatsiridza kusimba pakudziya kwakaderera, inonatsiridza kusapindirana nekuora kwemuchadenga, uye inovimbisa kurapwa kwakagadzikana kwekupisa.
Mhedzisiro yekurapa ndeyekudzikisa mhedzisiro yehydrogen embrittlement.
4. Chromium (Cr): Inogona kuvandudza kuoma, kuvandudza kupfeka kusagadzikana, kuvandudza kusagadzikana kwekuora, uye kubatsira kuchengetedza simba pakupisa kwepamusoro.
5. (Mo): Inogona kubatsira kudzora kubereka, kuderedza kunzwisiswa kwesimbi kuti iite brittleness, uye inotora basa rinokosha pakuvandudza simba rekugadzirisa pakupisa kwepamusoro.
Kukanganisa kukuru.
6. Boron (B): Inogona kuvandudza kuoma uye kubatsira kuita pasi kabhoni simbi ibudise mhinduro inotarisirwa pakupisa kupisa.
7. Alum (V): inonatsa austenite zviyo uye inovandudza kuoma
8. Silicon (Si): Inovimbisa kusimba kwezvikamu zvesimbi. Zvakakodzera zvemukati zvinogona kuvandudza mapurasitiki uye kuoma kwezvikamu zvesimbi.
35CrMo simbi chinhu chakanakisa cheinjini giredhi 129 yekubatanidza tsvimbo mabhaudhi uye inokwanisa kusangana nemichina yezvivakwa zvegiredhi 12.9 mabhaudhi zvinhu.
Iyo inzira inogoneka kutora nitrogen yekudzivirira kupisa kurapwa kwe12.9 giredhi yekubatanidza tsvimbo mabhaudhi, kutetepa uye kutonhora kwechikamu chetsvimbo, uye shinda inokunguruka mushure mekupisa kupisa, uye inogona kugadzirwa.
Gadzira mabhaudhi emhando yepamusoro-soro
Magiredhi ekuita emabhaudhi anoshandiswa pakubatanidza simbi chimiro akakamurwa kuita anopfuura gumi mamakisi akadai 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, uye 12.9.
Pakati pavo, mabhaudhi egiredhi 8.8 uye pamusoro anogadzirwa neakadzika kabhoni alloy simbi kana yepakati kabhoni simbi uye akabatwa nekupisa (kukadzimwa uye kushatirwa), anowanzozivikanwa semabhaudhi emasimba makuru.
Mamwe ose anowanzonzi mabhaudhi akajairwa. Iyo bolt performance giredhi label ine zvikamu zviviri zvenhamba, izvo zvinomiririra zita rekuti tensile simba kukosha kweiyo bolt zvinhu uye iyo
Goho-simba reshiyo. Semuenzaniso, bhaudhi ine performance level 4.6 zvinoreva:
1. Simba rezita rekusimba rebhaudhi rinosvika 400MPa;
Iko kusimba kwegoho reshiyo yeiyo bolt zvinhu ndeye 0.6:
2. Kusimba kwemazita ekugadzirwa kwebhoti kunosvika 400 × 0.6 = 240MPa performance level 10.9 high-simba mabhoti. Nyaya yacho yakapiswa
3. Mushure mekugadzirisa, inogona kubudirira:
1. Iyo bhaudhi zvinhu zvine zita rekusimba simba re1000MPa.
2. Chiyero chegoho-ku-simba reiyo bhaudhi zvinhu 0.9:
3. Simba rezita rekuburitsa bhaudhi rinosvika 1000×0.9=900MPa level
10.9 giredhi screws inoda yepakati kabhoni alloy simbi kudzima uye kupisa kupisa kurapwa, senge 35CRMO 40CR uye zvimwe zvinhu.
Iyo bhaudhi giredhi yekuongorora indekisi ndiko kusimba kwekusimba kwebhaudhi. Hazviiti't hazvina basa kuti chinhu chacho chii, chii's yakakosha zviratidzo zvemakinika senge simba rekusimba
Nguva yekutumira: Kubvumbi-16-2024