Ho na le lisebelisoa tse tharo tsa mantlha bakeng sa liboutu tsa sehlopha sa 12.9 (12.9 wedge ankora, 12.9 ka bolt): ankora ea carbon steel wedge, ankora ea tšepe e sa hloekang, le koporo.
(1) tšepe ea carbon (joalokacarbon steel Wedge Anchor Bolts). Re khetholla tšepe e tlase ea khabone, tšepe ea khabone e mahareng, tšepe e phahameng ea khabone le tšepe ea alloy e ipapisitseng le litaba tsa khabone ka thepa ea tšepe ea k'habone.
1. Tšepe e tlaase ea carbon e nang le C% <0.25% hangata e bitsoa tšepe ea A3 Chaena. Linaheng tse ling, li bitsoa 1008, 1015, 1018, 1022, joalo-joalo.
2. Tšepe ea khabone e mahareng 0.25%
Tšepe ea alloy: Eketsa likarolo tsa alloy ho tšepe e tloaelehileng ea khabone ho eketsa thepa e khethehileng ea tšepe: joalo ka 35, 40 chromium silver, SCM435.
3. 10B38. Li-screws tsa Fangsheng li sebelisa haholo tšepe ea SCM435 chromium-platinum alloy, eo likarolo tsa eona tsa mantlha e leng C, Si, Mn, P, S, Cr, le Mo.
(2) Ts'epe e sa hloekang (e kang likhoele tse entsoeng ka tšepe e sa hloekang). Sehlopha sa ts'ebetso: 45, 50, 60, 70, 80, haholo-holo austenite (18% Cr, 8% Ni), ho hanyetsa mocheso o motle
Ho hanyetsa kutu e ntle le ho chesehela hantle. A1, A2, A4 martensite le 13% Cr li na le khanyetso e mpe ea kutu, matla a phahameng le ho hanyetsa ho apara hantle. C1,C
2. C4 ferritic tšepe e sa hloekang. 18% Cr e na le bokhoni bo betere le ho hanyetsa kutu ho feta martensite. Hona joale, thepa e tsoang linaheng tse ling 'marakeng e etsoa haholo-holo Japane.
Latsoang. Ho ea ka boemo, e arotsoe haholo ka SUS302, SUS304 le SUS316.
3) Koporo. Lisebelisoa tse sebelisoang hangata ke koporo…alloy ea koporo ea zinc. H62, H65, le H68 koporo li sebelisoa haholo-holo e le likarolo tse tloaelehileng 'marakeng.
12.9 Tšusumetso ea likarolo tse fapaneng tsa thepa ea bolt ho thepa ea tšepe:
1. Carbon (C): E ntlafatsa matla a likarolo tsa tšepe, haholo-holo thepa ea eona ea phekolo ea mocheso, empa ha carbon content e ntse e eketseha, polasetiki le boima bo fokotseha.
'Me e tla ama ts'ebetso ea welding e batang le ts'ebetso ea welding ea likarolo tsa tšepe.
2. Manganese (Mn): E ntlafatsa matla a likarolo tsa tšepe le ho ntlafatsa ho thatafala ho isa tekanyong e itseng. Ke ho re, matla a ho kenella ka thata a eketseha nakong ea tlhahiso ea mollo.
E ka boela ea ntlafatsa boleng ba bokaholimo, empa manganese e ngata haholo e kotsi ho ductility le weldability. 'Me e tla ama taolo ea ho roala nakong ea electroplating.
3. Nickel (Ni): E ntlafatsa matla a likarolo tsa tšepe, e ntlafatsa ho tiea ha mocheso o tlaase, e ntlafatsa ho hanyetsa ho bola ha sepakapaka, le ho netefatsa phekolo e tsitsitseng ea mocheso.
Phello ea phekolo ke ho fokotsa phello ea hydrogen embrittlement.
4. Chromium (Cr): E ka ntlafatsa ho thatafala, ho ntlafatsa ho hanyetsa ho apara, ho ntlafatsa ho hanyetsa ha kutu, le ho thusa ho boloka matla mochesong o phahameng.
5. (Mo): E ka thusa ho laola tlhahiso, ho fokotsa kutloisiso ea tšepe ho halefisa brittleness, le ho phetha karolo ea bohlokoa ho ntlafatsa matla a ho tsitsa ha mocheso o phahameng.
Tšusumetso e kholo.
6. Boron (B): E ka ntlafatsa ho thatafala le ho thusa ho etsa hore tšepe e tlaase ea carbon e hlahise karabo e lebeletsoeng ho phekolo ea mocheso.
7. Alum (V): e hloekisa lijo-thollo tsa austenite le ho ntlafatsa ho thatafala
8. Silicon (Si): E netefatsa matla a likarolo tsa tšepe. Litaba tse nepahetseng li ka ntlafatsa polasetiki le ho tiea ha likarolo tsa tšepe.
35CrMo steel ke thepa e ntle haholo bakeng sa liboutu tse hokelang tsa enjene tsa sehlopha sa 129 mme e ka fihlela litlhoko tsa thepa ea mochini oa lisebelisoa tsa bolt ea grade 12.9.
Ke mokhoa o ka khonehang oa ho amohela kalafo ea mocheso oa ts'ireletso ea naetrojene bakeng sa liboutu tse hokelang tsa sehlopha sa 12.9, ho tšesa le ho pholisa ha karolo ea molamu, le khoele ea ho roala ka mor'a kalafo ea mocheso, 'me e ka hlahisoa.
Hlahisa liboutu tsa boleng bo holimo, tse nepahetseng haholo
Litekanyetso tsa ts'ebetso ea liboutu tse sebelisetsoang likhokahanyo tsa sebopeho sa tšepe li arotsoe ka limaraka tse fetang 10 tse kang 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, le 12.9.
Har'a tsona, liboutu tsa sehlopha sa 8.8 le ka holimo li entsoe ka tšepe e tlaase ea carbon alloy kapa tšepe e bohareng ea carbon 'me e' nile ea phekoloa mocheso (e tima le ho halefa), e tsejoang ka hore ke liboutu tse matla haholo.
Tse ling ka tloaelo li bitsoa liboutu tse tloaelehileng. Leibole ea boemo ba ts'ebetso ea bolt e na le likarolo tse peli tsa linomoro, tse emelang boleng bo ikhethileng ba matla a bolt le thepa ea bolt.
Karolelano ea chai-matla. Mohlala, bolt e nang le boemo ba ts'ebetso ea 4.6 e bolela:
1. Matla a ho sisinyeha ka lebitso a thepa ea bolt a fihla ho 400MPa;
Karolelano ea matla a tlhahiso ea thepa ea bolt ke 0.6:
2. Matla a tlhahiso ea lebitso la thepa ea bolt e fihla ho 400 × 0.6 = 240MPa boemo ba ts'ebetso ea 10.9 bolts ea matla a phahameng. Thepa e se e futhumetse
3. Ka mor'a ho sebetsa, e ka finyella:
1. Thepa ea bolt e na le matla a ho sisinyeha a 1000MPa.
2. Karolelano ea lihlahisoa-ho-matla ea thepa ea bolt ke 0.9:
3. Matla a tlhahiso ea tlhaho ea thepa ea bolt e fihla ho 1000×0.9=900MPa level
Li-screw tsa grade 10.9 li hloka ho tima tšepe e mahareng ea carbon alloy le kalafo e futhumatsang ea mocheso, joalo ka 35CRMO 40CR le lisebelisoa tse ling.
Lenane la tlhahlobo ea boemo ba bolt ke matla a tsitsitseng a bolt. Ha ho joalo't ho sa tsotellehe hore na thepa ke eng, eng's bohlokoa ke matšoao a mochini joalo ka matla a tensile
Nako ea poso: Apr-16-2024