Ke kuhikuhi nei ka poʻe ʻenekinia i ka hoʻolei ʻana i ka waiwai waiwai no nā pahu hydraulic koʻikoʻi nui a i ʻole nā hale paʻi kiʻekiʻe, ʻaʻole lākou e koho wale i kahi kaʻina hana - ke koho nei lākou i kahi hoa i hoʻomaopopo i ke kūpaʻa metallurgical ma lalo o ke kaʻa uila, ka hoʻihoʻi hou ʻana i loko o ± 0.05 mm, a me ka hoʻomanawanui ʻole no ka micro-porosity i nā ʻāpana ukana. ʻO ia ke kumu e hoʻi mau ai nā OEM honua hale hana hoolei kulika me ka mana i hoʻohui pono ʻia—ʻaʻole wale ma luna o nā ʻano wax a i ʻole ke kūkulu ʻana i ka pūpū, akā ma luna o ke kemika alloy, nā manawa hoʻomaʻamaʻa wela, a me ka hoʻokō GD&T hope loa i hoʻopaʻa ʻia e CMM. Ma QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., ua hāʻawi mākou ma luna o 12,000 precision stainless steel castings mai 2018-ʻo kēlā me kēia mea traceable i ka mill-certified 316L, 17-4PH, a i ʻole 2205 duplex billets i hoʻololi ʻia, kēlā me kēia ma hope o ka machining, a nānā ʻia ma mua o ka mīkini.
No ke aha e ku'i ai ka hoolei waiwai i ke one a i ole i ka hoolei make no na apana kuhilihi
ʻAʻohe o ka hoʻolei ʻana i ke one i ka pau ʻana o ka ʻili a me ka pono o ka nui e pono ai no ka hoʻopaʻa ʻana i nā ʻili ma nā hale pahu pahu piston pump. ʻAʻole hiki i ka hoʻoheheʻe make ke hoʻopaʻa i nā kila kila ma luna o 1,400°C me ka ʻole o ka hoʻoheheʻe wikiwiki ʻana. Hoʻoholo ka hoʻolele kālā i nā mea ʻelua-me ka hoʻohana ʻana i nā pūpū seramika e kū ʻole i ka ikaika piha i ka wai e hoʻoheheʻe ʻia me ka paʻa ʻana i nā hiʻohiʻona e like me ka 0.8 mm mānoanoa o ka paia a me ka Rz ≤ 3.2 µm as-cast surface roughness. Ua ʻike mākou i ka hoʻololi ʻana o nā mea kūʻai mai ke one-cast 304 valve body i nā mana hoʻopukapuka 316L a ʻoki i ka ʻōpala post-machining e 68%-no ka mea, ʻo nā ʻāina geometry as-cast i loko o 0.15 mm o ka kikoʻī hope loa. ʻAʻohe kuhi. ʻAʻohe puka hana hou. ʻO ka pololei o ke ʻano ʻupena hiki ke wānana.
ʻAʻole ʻo "Stainless" wale nō ma ka Pepa
ʻAʻole ʻo "Stainless" kahi mea hoʻokahi - he ʻohana me nā ʻano like ʻole. ʻO ka maʻamau 304 warps ma lalo o ke koʻikoʻi hoʻomaha annealing. Koi ʻo 17-4PH i ka ʻelemakule pololei ma 480°C ± 5°C e paʻi i ka ikaika H900. A me AMS 5387 kobalt alloy? ʻAʻole hiki ke hoʻohana ʻia i ka mīkini me ka ʻole o nā mea hana carbide a me ke kahe ʻana o ka coolant. Ma kā mākou hale Qingdao, ʻaʻole mākou e kūʻai i nā mea ʻala maʻamau - ua kūpono mākou i kēlā me kēia wela e kūʻē i ka ASTM A743 / A744 a me EN 10283. I ka wā e pono ai ka mea kūʻai aku o ʻEulopa i 2205 mau hale duplex no ka lawelawe ʻaila a me ke kinoea ma waho, ua holo mākou i ʻekolu mau hoʻāʻo me ka hōʻoia kikoʻī SGS kūʻokoʻa-a laila paʻa i ka mea kūʻai aku i ka cone con 3% ±1. pūʻulu. ʻAʻole ia ka hoʻokō. ʻO ia ka mana.
Mai ka Wax Pattern a hiki i ka Hoʻouna ʻana— Kahi e hōʻoiaʻiʻo ai ka hoʻohui pū ʻana
ʻO ka hapa nui o nā hale hana hoʻolei kuhili ʻole i waho i ka mīkini a hoʻopau paha. Ka mea e hana ana i nā āwaha lima: he 0.02 mm ka hoʻomanawanui ʻana ma waena o ka hoʻolei ʻana i ka wānana shrinkage a me ka hoʻonohonoho pono ʻana o CNC; ʻaʻole kūlike ka ikaika o ka pana-pahū e pili ana i ka hoʻopili ʻana i ka passivation; unrecorded thermal history compromising fatigue life. Loaʻa iā mākou kēlā me kēia pae:
- E hoolei ana: ʻO nā hiʻohiʻona wax-wax i hana ʻia mai ka mea kūʻai aku CAD, i hoʻopaʻa ʻia i loko o ka ISO 9001-certified ceramic slurries, puhi ʻia ma 1,100°C no ka pau ʻana o ke ahi.
- Mīkini: ʻO nā kikowaena CNC 5-axis me ka hoʻāʻo ʻana ʻo Renishaw—ʻoki ʻia ʻo 17-4PH paʻakikī ma 85 m/min ka nui o ka hānai ʻana me ke kamaʻilio ʻole.
- Hoʻopau: Electropolishing no ka ASTM B912, ka pahu pahu i ka Sa 2.5, a i ʻole nā uhi maʻamau e like me HVOF WC-Co no nā wili pahu winch center shaft.
- QC: Loaʻa i kēlā me kēia ʻāpana ka nānā ʻana i ka contour optical + hōʻoia CMM e kūʻē i nā kelepona GD&T mua; ʻO nā palapala hōʻoia i hoʻopaʻa ʻia no 10 mau makahiki
Ua hoʻouna aku nei mākou i 472 mau kino valve kaomi i kahi OEM hydraulic ʻAmelika ʻAmelika. Ua hōʻea mai nā mea a pau me nā hōʻike nānā piha, nā ʻikepili hoʻāʻo tensile pae pae, a me nā lāʻau lapaʻau wela - ʻaʻole nā hōʻuluʻulu. Ua haʻi mai ka mea kūʻai iā mākou: "No ka manawa mua i loko o ʻelima mau makahiki, ua lele mākou i ka nānā ʻana mai."
He aha kāu e nīnau ai ma mua o ka hui pū ʻana me kekahi hale hana hoʻolei ʻana
Mai nīnau "Ke hana nei ʻoe i ka stainless?" E nīnau mai:
- Hiki iā ʻoe ke hōʻike mai iaʻu i kāu mau palapala wili hope ʻekolu no 316L—a hōʻoia i ka hiki ke ʻike i ka helu wela o ka umu ahi ma kāu hoʻolei ʻana?
- Pehea ʻoe e hōʻoia ai i ka pono o ka pūpū ma mua o ka ninini ʻana? (Hoʻohana mākou i ka tomography X-ray ma 10% o nā pūpū - hopu i nā micro-cracks i ʻike ʻole ʻia e ka nānā ʻike.)
- He aha kāu mea kūʻai lōʻihi loa no nā ʻāpana AMS 5387-a he aha kā lākou helu kauoha hou ma mua o 36 mau mahina?
- Paʻa paha ʻoe i ka AS9100 a i ʻole NADCAP no ka ʻili aerospace-grade? (ʻAʻole mākou - akā naʻe - akā ua hoʻokō mākou i nā koi ʻenehana āpau no nā ʻāpana stainless grade ISO 13485.)
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ʻaʻole hahai i ka leo. Ke nānā aku nei mākou i nā ʻāpana i koho ʻole ʻia ka hāʻule ʻole—ʻo nā kumu pahū e haʻalulu ana i ka 3,600 RPM, nā nozzles alumini cobalt e lawelawe ana i ka 220 bar abrasive slurry, winch shaft rollers e kākoʻo ana i nā ukana kaʻa ʻenehana he 12-ton. Aia ko mākou ikaika i ka ʻōlelo ʻana "ʻae" wale nō ke hoʻohālikelike ka metallurgy, geometry, a me ka hana - a hāʻawi iā ia, i kēlā me kēia manawa.
Inā ʻoi aku ka ʻoi aku o kāu hana hoʻoheheʻe stainless steel hou aku ma mua o ka foundry - pono ia i kahi hoa hana kikoʻī me ka hoʻopaʻa ʻana i ka alloy i kākau ʻia, ka metrology i hoʻokomo ʻia, a me ka paʻakikī maikaʻi ʻole-compromise-hale hana hoolei kulika Hoʻomaka ka mana ma kahi e pau ai ka hoʻolei ʻana: me ka hilinaʻi e hoʻokō ʻia kēlā me kēia ʻāpana, kēlā me kēia hale ʻai, kēlā me kēia hoʻopau ʻili i ke koi - ʻaʻole ma ka pepa wale nō, akā ma ka hana.
