Kedu ihe kpatara mmekọ ụlọ ọrụ 17-4PH dara - yana otu otu ndị otu Qingdao si edozi ya kwa ụbọchị
Imirikiti ndị injinia na-enweta akụkụ 17-4PH kụrụ otu mgbidi ahụ: onye na-ebubata na-ekwe nkwa ike H900 na nnabata ASTM A564, wee na-ebuga ike na-ekwekọghị ekwekọ gafee otu batch-ma ọ bụ nke ka njọ, obere mgbawa mgbe ọgwụgwọ okpomọkụ gasịrị. Anyị ahụla ya na ụlọ valvụ hydraulic jụrụ n'etiti mgbakọ, na ogwe aka mgbapụta piston na-ada na 3,200 psi, na winch center shafts na-agba n'oge egweri ikpeazụ. Ihe kpatara ya abụghị ihe na-adịghị mma - ọ bụ ike nkewa. A eziokwu Ụlọ ọrụ 17-4PH ga-achịkwa ígwè, igwe na nhazi okpomọkụ n'okpuru otu ụlọ. Ọ bụghị naanị "nwere ike" - mana egosipụtara, enwere ike ịchọpụta ya, enwere ike ikwugharị ya.
Njikwa Metallurgical Amalite Tupu Machining amalite
17-4PH abụghị naanị "igwe anaghị agba nchara nwere ọla kọpa." Nguzogide corrosion ya na 1,100 MPa tensile ike na-adabere na kinetics ịka nká kpọmkwem: dị mkpụmkpụ, na precipitates adịghị etolite; ogologo oge, ma ha na-akpụ akpụ, ike na-eweda ala. Na QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., billet 17-4PH ọ bụla na-abịa na akụkọ nyocha igwe igwe zuru ezu - nke enwetara na AMS 5604 ma ọ bụ ASTM A564 Grade 630-ma na-enweta nkwenye na-abata: nyocha ọkụ, nyocha PMI, na ngwọta-anneal okpomọkụ bụ nkwado tupu ọ bụla.
Anyị anaghị enweta ọgwụgwọ okpomọkụ. Ụlọ ọrụ anyị kwekọrọ na ISO na-eji ọkụ ikuku na-achịkwa ± 2 Celsius C, na-esote helium jụrụ oyi quenching iji gbochie nhazi nke delta ferrite. A na-edebanye usoro ịka nká n'otu nza-ọ bụghị kwa mgbanwe-na maapụ thermocouple ozugbo. Nsonaazụ? Ọdịiche siri ike na-anọ n'ime HRC 38-40 maka ọnọdụ H900, kwadoro na isi atọ kwa akụkụ site na iji akpịrịkpa Rockwell B na C. Enweghị ntule. Enweghị arụkwa ọrụ.
Nrụpụta nkenke nke na-asọpụrụ ọka
17-4PH na-arụ ọrụ-ike ike ike. Ụzọ ngwá ọrụ ọkọlọtọ na-eme ka uwe mwụda ngwa ngwa na-eyi, akara mkparịta ụka, na mkpagharị akụkụ-karịsịa n'ime ụlọ cylinder nwere mgbidi ma ọ bụ ahụ valve nrụgide dị omimi. Ndị otu CNC anyị na-eji atụmatụ igwe nri dị elu nwere ntinye carbide mkpuchi PVD, mgbagha mgbanwe nke na-ebelata ike radial site na 35%, yana sistemu eji eji ngwa ngwa akpọrọ maka 12,000 rpm spindles.
Anyị na-arụ ọrụ dị egwu * mgbe * ịka nká — ọ bụghị mbụ. Gịnị kpatara? N'ihi na mgbe ọgwụgwọ-okpomọkụ enyemaka nchegbu na-agbanwe akụkụ geometry. Nkwenye 0.015 mm na ụlọ dị dayameta 200 mm ga-abụ nke a na-apụghị irute ma ọ bụrụ na ị na-egwe ọka tupu emee agadi wee mee agadi. Usoro anyị na-agbachi GD & T njikwa na ọnọdụ ikpeazụ: elu imecha Ra ≤ 0.8 μm na akara ihu, ọnọdụ ndidi ± 0.02 mm na arịọnụ oghere, na concentricity nọgidere na-enwe na 0.01 mm na shaft akwụkwọ akụkọ-niile tụrụ na a calibrated Zeiss CONTURA G2 CMM na okpomọkụ-comment.
Ebe nkedo na-ezute ọkachamara Alloy ike dị elu
Ụfọdụ ngwa 17-4PH chọrọ mgbagwoju anya dị nso na-enweghị ike iji ngwaahịa mmanya: ntọala mgbapụta asymmetric, ọwa jụrụ oyi na valvụ manifolds, ma ọ bụ ihe mgbochi cylinder ọdụ ụgbọ mmiri. Nke ahụ bụ ebe ihe nlereanya anyị nwere ike abụọ dị mkpa. Anyị na-atụba 17-4PH site na ntinye ntinye ego-ọ bụghị ájá-iji nweta nhịahụ dị n'elu dị ka Ra 3.2 μm na nkwụsi ike akụkụ n'ime ± 0.3% nke nha aha.
Mana nkedo 17-4PH na-ewebata ihe egwu: porosity mbelata, ikewapụ n'akụkụ oke, na mgbakasị ahụ ma ọ bụrụ na ọnụego jụrụ oyi si na 5–10°C/s pụọ. Ndị otu ụlọ ọrụ anyị na-enyocha ihe siri ike site na foto thermal, na-edozi nhazi gating site na iji simulation MAGMASOFT, ma kwado nke ọ bụla na-agbapụta na nnwale ultrasonic (ASTM E114) na nyocha macro-etch. Ihe nkedo ọ bụla na-ebu NJ okpomọkụ pụrụ iche jikọtara ya na akụkọ kemịkal ya, ndekọ okirikiri okpomọkụ, yana nsonaazụ NDT - nke a na-achọpụta nke ọma na batch akụrụngwa.
Nkwenye n'Ezie n'Ụwa—Ọ bụghị nanị nrubeisi akwụkwọ
Nrube isi pụtara ihe ọ bụla na-enweghị ọnọdụ. Mgbe European OEM chọrọ 17-4PH piston pump cylinder housings maka nfuli mmiri dị n'okpuru osimiri, ha akọwapụtara ASTM A564, H900, na nguzogide nnu - awa 1,000 kwa ASTM B117. Mana ha akọwapụtaghị otu esi ejikwa ntugharị flange-to-barrel nke dị 12mm - onye na-ebulite nrụgide ama ama.
Anyị na-agba ọsọ nlegharị anya ike ọgwụgwụ nke FEA, gbakwụnye ogbunigwe n'ime mpaghara na radius fillet, wee kwado mgbatị ndụ ya na nnwale 500,000-cycle hydraulic pulsation na 4,500 psi. Akụkụ ahụ gafere. Nke kachasị mkpa, ha na-ebuga na nhazi oge-n'ihi na usoro nhazi usoro anyị na-adabere na usoro ọgwụgwọ okpomọkụ, nhazi, na imecha n'otu oge, ọ bụghị usoro. Prototype ụzọ oge: 18 ụbọchị. Ọkara-olu (500 pcs): 32 ụbọchị. Ha niile nwere akwụkwọ PPAP zuru oke, gụnyere ọmụmụ MSA na atụmatụ njikwa.
Ọ bụrụ na ọrụ 17-4PH gị na-esote chọrọ iguzosi ike n'ezi ihe n'okpuru nrụgide, nguzogide corrosion na mgbasa ozi ike ike, yana enweghị ndidi maka ihe ịtụnanya ọkọnọ-bido na onye mmekọ na-ewere sayensị alloy dị ka enweghị nkwekọrịta, ọ bụghị nhọrọ. Ụlọ ọrụ QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. na-arụ ọrụ dị ka eziokwu Ụlọ ọrụ 17-4PH: agbakwunyere n'ụzọ kwụ ọtọ, n'ụzọ igwe na-adọ aka ná ntị, ma mebere ya maka ntụkwasị obi dị mkpa nke ozi. Ụzọ ha anaghị ezute naanị nkọwapụta - ọ na-atụ anya ụdị ọdịda tupu ngwaọrụ mbụ emetụ ígwè.
