Hāʻawi ka hao hina hina i ka lōʻihi like ʻole a me ka maikaʻi o ke kumukūʻai no nā ʻāpana ʻoihana koʻikoʻi-ʻoi aku ka nui o ka hoʻoheheʻe ʻana o ka haʻalulu, ke kūpaʻa ʻana, a me ke kūpaʻa wela. Ma QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., ua hana mākou ma luna o 12,000 mau ʻāpana hoʻolei hao hina no nā kino valve hydraulic, nā hale pahū, a me nā pahu pahu kaʻa ʻenekinia mai 2020. Hoʻokō kēlā me kēia ʻāpana me ka ASTM A48 Class 30B ka ikaika tensile haʻahaʻa (207 MPa) me ka graphite type ASTM flake. A247—no ka hāʻawi like ʻole ʻana o ka flake ke kumu i nā māwae luhi mua i loko o nā liner cylinder ma lalo o ke kaomi cyclic.
No ke aha e lanakila mau ai ka hao hina ma kahi e helu ai
Manaʻo kekahi poʻe ʻenekinia i ka hao ductile a i ʻole ke kila e hoʻololi i ka hao hina i nā noi koi. Akā, haʻi ka ʻikepili maoli i kahi moʻolelo ʻē aʻe. Ma kahi noiʻi kahua hou o 475 piston pump cylinder housings ma waena o nā ʻauwaʻa lawelawe ʻaila ʻAmelika ʻĀkau, ua lōʻihi ka lōʻihi o nā mana hao hina he 18% ma mua o nā ʻāpana hao ductile like ma lalo o nā haʻahaʻa pulsating like 3,000-psi. No ke aha mai? Hana ʻia nā graphite flakes ma ke ʻano he mau waihona lubrication i kūkulu ʻia i ka wā o nā kūlana lubrication palena-a hoʻopaʻa lākou i ka ikehu vibrational e hoʻolaha ʻē aʻe i loko o nā pale kau a me nā sila.
ʻIke mākou i kēia i kēlā me kēia lā ma kā mākou laina hoʻolei one: ke hoʻololi nā mea kūʻai mai ka hao ductile a i ka hao hina ASTM A159 G3000 no nā huila winch center shaft, hāʻule ka manawa mīkini i 22% ma muli o ka paʻakikī haʻahaʻa (187–229 HBW vs. 241–269 HBW) a me ka ʻoi aku ka maikaʻi o ka haki ʻana. ʻAʻole ia he manaʻo—ua ana ʻia ia ma kā mākou Okuma MULTUS U3000 multi-axis CNC i ka wā hoʻopau hoʻololi. ʻAʻohe pōloli hoʻoluʻu. ʻAʻohe hāmeʻa walaʻau. Hoʻopau ʻia ka ʻili ma Ra 1.6 µm.
Hoʻoponopono ka hao hina i nā pilikia hoʻokele wela ʻaʻole hiki i nā mea ʻē aʻe. ʻO nā kumu paʻa i ʻike ʻia i ka piʻi ʻana o ka wai wela (e laʻa, 60°C a i 120°C i nā pōʻai 90-kekona) e hōʻike ana i ka 40% emi ʻana o ka wela me ka hao hina me ke kila kila 316. ʻO ke kumu? ʻOi aku ka nui o ka wela (50 W/m·K vs. 16 W/m·K) a me ka helu haʻahaʻa o ka hoʻonui wela (10.4 × 10⁻⁶/°C vs. 16 × 10⁻⁶/°C). Hōʻoia mākou i kēia me ka hoʻohana ʻana i ka thermograph infrared i ka wā o ka hoʻāʻo hana — ʻaʻohe kuhi.
ʻO ke kumukūʻai huna o nā mea hoʻolei hao hina "cheap".
ʻAʻole hana like nā hao hina a pau. Ua loiloi mākou i 31 mau ʻōlelo a ka mea hoʻolako no ka ASTM A48 Class 25 hina hina hao puʻupuʻu puʻupuʻu—a ʻike ʻia he 68% ʻaʻole i hāʻule i nā loiloi metallurgical kumu. ʻO nā pilikia maʻamau e pili ana i ka nui o ka phosphorus (> 0.12%), ka maʻi pearlite i kāohi ʻole ʻia (<80% ma nā ʻāpana haʻahaʻa), a me ke koena o ka magnesium i lawe ʻia mai ka ninini ʻana o ka hao ductile ma mua. Hoʻokumu kēia mau hemahema i ka haʻihaʻi ma ka hoʻomaka anu a i ʻole ka hoʻoheheʻe dimensional ma hope o ke kaʻa kaʻa wela.
Ma QINGDAO QIANGSENYUAN, hoʻomaka kēlā me kēia hehee hao hina me ka hao puaʻa haʻahaʻa-phosphorus i hōʻoia ʻia (≤0.05% P) a me nā mea hoʻomaʻemaʻe palaoa ferrosilicon. Hoʻopaʻa mākou i ka like kalapona (CE) ma waena o 3.7-4.1 e kaulike i ka wai a me ka ikaika - ʻaʻole e alualu i nā helu tensile kiʻekiʻe ma ka lilo o ka machinability. Hoʻopaʻa kā kā mākou umu ahi i ka sulfur, manganese, a me ka helu hoʻoluʻu i ka manawa maoli. Inā hele ka CE ma mua o ± 0.05, ʻoki mākou i ka wela—ʻaʻole e hoʻohaʻahaʻa.
Uku ia a'o. Hōʻike nā mea kūʻai aku i nā hemahema o ka mahina ʻai ma kā mākou AMS 5387-kūpono i nā ʻāpana pauma hao hina ma luna o 42 mau mahina o ka hoʻomau ʻana i ka hana ma nā pae ʻāina ʻo ʻAsia Hema. ʻAʻole maʻalahi ka pale ʻana i ka corrosion-akā, ʻoi aku ka maikaʻi o kā mākou microstructure i hoʻomalu ʻia i ke koʻikoʻi o ka sulfide ma mua o nā helu generic foundry.
ʻO ka manawa e koho ai i ka hao hina ma mua o nā mea ʻokoʻa
E koho i ka hao hina hina ke koi mai kāu noi:
- Kuʻi haʻalulu - koʻikoʻi no nā kumu compressor, nā hale hoʻemi hoʻemi, a me nā papa hoʻāʻo
- ʻO nā ili hoʻoluʻu ponoʻī - kūpono no nā pahu kaʻa, nā papa paʻa, a me nā ala alakaʻi hoʻoheheʻe
- ʻO ke kūpaʻa ʻana ma lalo o ke kaʻa kaʻa wela - i hōʻoia ʻia i loko o nā poloka ʻenekini, nā pahu hoʻoheheʻe, a me nā kumu hoʻololi wela
- ʻO ke kumu kūʻai kumu kūʻai nui waena — He 30–50% ka nui o ke kumukūʻai o nā mea hana hao hina ma lalo o ka hoʻolele kālā no nā ʻāpana >5 kg
E hōʻalo i ka hao hina wale nō ke koi ʻia ka paʻakikī o ka hopena hope loa (e laʻa. No nā mea ʻē aʻe a pau—me nā puʻupuʻu kaomi i helu ʻia i ka 10,000 psi, nā hale pahu piston pump cylinder me 0.025 mm hoʻomanawanui ʻana, a me nā wili winch kaʻa ʻenekinia e lawelawe ana i nā ukana static 80-ton—ʻo ka hao hina ka mea i koho ʻia.
Hoʻomaka ka hui ʻana me ka ʻike waiwai
ʻAʻole pono ke koho ʻana i ka hao hina hina ke koho ma waena o ke kumukūʻai a me ka hana. Ma QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., mālama mākou i ke koho waiwai ma ke ʻano he ʻenekinia hui like ʻole - ʻaʻole kūʻai. Hōʻike kā mākou hui i nā kelepona GD&T ma mua o ka haʻi ʻana, e hōʻoia i ka hoʻoheheʻe ʻana i nā pilikia i nā ʻāpana pā lahilahi, a hōʻoia i ka hoʻohālikelike ʻana i ka hoʻoheheʻe ʻana i nā hoʻokolohua maoli. ʻAʻole mākou e hoʻouna wale i nā mea hoʻolei - hāʻawi mākou i nā microstructures i hōʻoia ʻia, hiki ke ʻike ʻia i ka helu wela, a me nā hōʻike dimensional i pūlima ʻia e nā mea nānā i hōʻoia ʻia e CMM.
No nā mea kūʻai e hōʻike ana i ka hao hina hina, manaʻo mākou e hoʻomaka me ʻekolu nīnau: He aha ke ʻano hemahema i kāu hoʻolālā o kēia manawa? ʻO wai nā ʻili e halihali i ka ukana me nā mea e koi ana i ke sila? A pehea e puʻunaue ai nā gradients wela ma ka ʻāpana i ka wā e hana ai? E pane i kēlā—a e hoʻohālikelike mākou iā ʻoe me ka papa kūpono, ke ala hana, a me ka protocol nānā.
ʻAʻole ʻenehana hoʻoilina nā hoʻoheheʻe hao hina. He mau hoʻonā i hana ʻia ma mua o 150 mau makahiki - a ke ulu nei. Ma kā mākou ʻoihana ISO-compliant ma Qingdao, ʻo kēlā me kēia ninini e holomua i kēlā ʻano. No ka mea, ʻaʻole pili wale ka lōʻihi i ka ikaika. E pili ana i ka wānana. Kūlike. Manao.
