Ke hāʻule ka pauma hydraulic i loko o ka ʻaila ʻaila waho—a i ʻole e hopu ʻia kahi pahu piston i loko o kahi pāpaʻi paʻa kiʻekiʻe-ʻaʻole hiki ke hoʻolālā ʻia ke kumu kumu. He lole. A ʻaʻole ʻaʻahu wale nō: ʻo ia ka micro-pitting, galling, a me ka abrasive erosion ma lalo o nā ukana cyclic ma mua o 300 MPa. Ua ʻike mākou iā ia ma ka pūnaewele ma nā kahua o ke Kai ʻĀkau o Norewai a me nā moku dredging ʻĀkia Hema - kahi i pani ʻia ai ka hana lima Stellite hoʻokahi no 48+ mau hola. ʻO ia ke kumu i nīnau ʻole ai nā ʻenekinia "He aha ka lima liʻiliʻi?" Nīnau lākou, "ʻO wai ka mea hiki ke hāʻawi i nā lima lima kobalt alloy AMS 5387-grade me ≤±0.015 mm ka hoʻomanawanui ʻana o ka pōʻai, ka hiki ke mālama ʻia i ka wela, a me ke ola kahua i hōʻoia ʻia ma mua o 12,000 mau hola hana?"
No ke aha ʻo "Stellite lima hale hana" ʻaʻole he huaʻōlelo huli wale nō - he kānana kikoʻī
ʻOi aku ka nui o nā hōʻailona "Stellite lima lima" ma mua o ka hiki ke hana. He pōkole ia no ka hoʻopaʻi ʻana i ka metallurgical, ka pololei machining, a me ka ʻike ʻana i ke ʻano hemahema. ʻAʻole hana ʻia nā ʻāpana Stellite-ʻoi aku ka Stellite 6 (AMS 5387) a me T800 e like me ke kila kila. ʻO kā lākou cobalt-chromium-tungsten matrix e kūʻē i nā mea hana ʻoki, hana-paʻakikī, a koi i ka paʻa wela i ka wā wili. He oiaio hale hana lima stellite Pono e hoʻomalu i ʻekolu mau ʻano hoʻololi ʻole: ka palapala hōʻoia maka (nā hōʻike hoʻāʻo wili ma ka ASTM F75 a i ʻole AMS 5732), ka hoʻomaha ʻana i ke koʻikoʻi ma hope o ka mīkini hana e pale ai i ka hoʻoheheʻe ʻana, a me ka hōʻoia ʻana i ka pono o ka ʻili - ʻaʻole nā waiwai Ra wale nō, akā ʻo ka ʻike microcrack subsurface ma o ka hoʻāʻo penetrant fluorescent.
Ua loiloi mākou ma luna o 30 mau mea hoʻolako e koi ana i ka loea Stellite. ʻAʻole hiki i ka hapalua ke hana i kahi hoʻopau ID hou ʻia ma lalo o Ra 0.4 µm ma kahi lua 120-mm. Hāʻawi kekahi i nā lima lima me ka 0.08 mm o waho o ka poepoe—e ʻae ʻia no nā puʻupuʻu haʻahaʻa haʻahaʻa, pōʻino no nā pamu piston axial. Aia ka ʻokoʻa i ka hoʻohui ʻia ʻana: ka hoʻolei ʻana i ka hoʻoheheʻe ʻana i ka palaoa, CNC toolpath optimization no cobalt alloys, a me ka nānā ʻana i ka CMM i kēlā me kēia pae-ʻaʻole wale ka nānā hope.
ʻEhā mau mana e hoʻokaʻawale i nā mea hana lima Stellite kūpono mai nā hale kūʻai metala maʻamau
Ke hana nei kahi hale hana lima Stellite maoli ma ke kikowaena o ʻekolu mau ʻano: metallurgy, precision machining, a me ka hōʻoia hana. Eia kā mākou hōʻoia ma mua o ka ʻae ʻana i kahi mea hoʻolako:
- Hiki ke ʻike ʻia nā mea i lalo i ka ʻāpana ingot—ʻaʻole nā helu pūʻulu wale nō, akā, nā hōʻike haku mele i hōʻoia ʻia e pili ana i ka AMS 5387 spec (C: 0.9–1.4%, Cr: 27–31%, W: 3.5–5.5%, Co balance)
- Hiki i ka multi-axis CNC me nā hoʻonohonoho paʻa paʻa—ʻaʻohe mea wili maʻamau; Pono mākou i nā mea hana ola Y-axis a me nā spindles e hoʻokele i ka haʻalele ʻana i ka chip a me ka hoʻoheheʻe wela.
- Hoʻohui hoʻomaʻamaʻa wela—ka hoʻoheheʻe ʻana i ka hopena ma 1175°C ±10°C a ukali ʻia e ka hoʻolili ʻana o ka ea wikiwiki, i hōʻoia ʻia e ka palapala ʻāina paʻakikī ma waena o nā ʻāpana keʻa (HRC 38–44, ʻaʻahu i loko o ±2 mau helu)
- ʻOihana hoʻāʻo hana-ʻaʻole wale nā loiloi dimensional, akā hoʻāʻo lawelawe hoʻohālikelike: 500-hola hoʻāʻo e kūʻē i nā counterfaces 420SS paʻakikī ma lalo o 200 MPa hydraulic ukana
Me ka ʻole o nā ʻehā, ke kūʻai nei ʻoe i nā ʻāpana-ʻaʻole ka hōʻoiaʻiʻo hana. Ua ʻike mākou i nā lima lima i hala i ka CMM akā hāʻule ma hope o 800 mau kaʻina no ka mea ʻo ke koena o ke koʻikoʻi i hoʻokumu i ka micro-weld ma ka sliding interface. ʻO ia ke kumu o QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. hoʻokomo i nā metallurgists i ka hoʻolālā hana - ʻaʻole ma ke ʻano he mau kūkākūkā, akā ma ke ʻano he mea nona ka hana.
ʻO ke kumukūʻai huna o nā lima lima Stellite "off-the-shelf" - a pehea e hoʻohui ai ka geometry maʻamau i ka waiwai
Ke manaʻo nei kekahi poʻe kūʻai aku ua kūʻai ʻia nā lima lima Stellite. ʻAʻole lākou. Hoʻokuʻu ʻole ʻia nā ʻāpana OD/ID maʻamau i nā ʻōnaehana kikoʻī maoli: ʻaʻole kūlike ka hoʻonui ʻana i ka wela ma waena o ka lima lima a me ka hale, ka hoʻouka ʻana asymmetric i nā hoʻolālā pahū eccentric, a i ʻole ka haʻalulu i hoʻoulu ʻia e ka haʻalulu ma ka hui flange. Ua hoʻololi mākou i ka lima maʻamau i loko o ka paila slurry mining me kahi ʻano maʻamau e hōʻike ana i ka tapered interference fit a me radial vent grooves. Ka hopena: 3.2 × ka lōʻihi o ke ola lawelawe, zero seal leakage, a me ka hoʻopau ʻana i ka downtime i hoʻolālā ʻole ʻia. ʻO ke kumukūʻai "maʻamau" he 18% kiʻekiʻe. ʻO ka ROI? $217,000 i mālama ʻia i kēlā me kēia makahiki ma ka hana, nā ʻāpana ʻokoʻa, a me ka hana nalowale.
ʻAʻole ʻoki wale nā hale hana lima Stellite no ka paʻi ʻana—e nīnau lākou i ka hana. Ke hoʻouna mai kahi mea kūʻai iā mākou i kahi kiʻi GD&T, ʻaʻole kā mākou nīnau mua "Hiki iā mākou ke hana?" ʻO ia "He aha ke ʻano hoʻopōʻino ʻino loa e pale ʻia e kēia ʻae ʻana?" Hoʻololi kēlā noʻonoʻo i ke kamaʻilio ʻana mai ke kumukūʻai no kēlā me kēia ʻāpana i ke kumukūʻai no ka hola hana.
Kahi e hui ai ka pololei me ka hilinaʻi—a no ke aha e hoʻomaka ai ma mua o ka ʻoki mua ʻana
Loaʻa i kahi hale hana lima Stellite ka hilinaʻi ʻaʻole i ka ʻāpana i hoʻopau ʻia, akā i kāna mau mana i luna. Ma QINGDAO QIANGSENYUAN TECHNOLOGY, hoʻomaka ka ʻae ʻana i nā mea me ka nānā ʻana i nā spectrographic o kēlā me kēia pahu hoʻohui cobalt e komo mai. Hoʻohana ka mīkini i ka ISO 2768-mK tolerances ma ke ʻano kumu - ʻaʻole ma ke ʻano he pahuhopu, akā ma ka liʻiliʻi. Loaʻa i kēlā me kēia lima ka hoʻāʻo ultrasonic 100% no ka porosity kūloko, a laila optical profileometry e palapala i ka topography ili ma 5-µm hoʻonā. Hoʻokomo ʻia ka ʻeke hope loa i nā palapala hōʻoia kikoʻī pūʻulu e uhi ana i ka kemika, ka paʻakikī, ka ʻikepili dimensional, a me nā moʻolelo hoʻāʻo hoʻopau ʻole - hiki ke ʻike ʻia i ka hehee mua.
ʻAʻole kēia i ka ʻenehana nui. ʻO ka hoʻohaʻahaʻa pilikia. No ka mea i ka wā e holo ai kāu noi ma 15,000 psi me ka wai hoʻopiha one abrasive, ʻaʻohe manawa lua. Pono ʻoe i kahi hale hana lima stellite e mālama i kēlā me kēia ʻāpana e like me ka misionari-koʻikoʻi-ʻaʻole no ka mea i ʻōlelo ʻia ma kahi pūnaewele, akā no ka waiho ʻana o kā lākou kaʻina hana no ka manaʻo. ʻO ia ka maʻamau a mākou e paʻa ai - a ʻo ka mea e koi nui nei nā ʻenekinia.
