Ntawm Wuxi LongWei Precision Tube Co., Ltd., deg roughness tsis yog ib qho spec ntawm daim duab xwb - nws yog ib qho kev sib tham txhua hnub ntawm peb pab neeg tsim khoom, chaw kuaj xyuas zoo, thiab cov neeg siv khoom cov kab sib dhos. Thaum cov engineers nug, "Dab tsi Ra nqi peb tuaj yeem xav tau los ntawm koj cov hlab ntsha txias?" cov lus teb nyob ntawm tus txheej txheem tswj, ntsuas txoj kev, thiab kev siv lub hom phiaj. Ntawm no yog yuav ua li cas peb mus rau saum npoo tiav, raws li cov ntaub ntawv tiag tiag los ntawm peb lub khw hauv pem teb.
Hom Ra Values: Dab Tsi Txias Drawing Xa
Standard txias drawn tubes-tsim yam tsis muaj kev ua tiav thib ob- feem ntau ua tiav ib txoj kab uas hla (ID) roughness ntawm Ra 1.6–3.2 μm. Qhov no haum rau ntau daim ntawv thov pneumatic, kev siv cov qauv, lossis ua ntej - ua tiav ua ntej skiving.
Thaum cov neeg siv khoom xav tau kev ua tiav nruj dua rau hydraulic sealing, peb feem ntau ua ke skiving thiab cov menyuam kub hnyiab tom qab kos duab txias. Nyob rau hauv qhov kev ua haujlwm, ID roughness ntseeg tau ruaj khov ntawm Ra 0.2-0.4 μm, nrog kev tswj nteg kev taw qhia kom txo qis hnav. Lub hli tas los, thaum tsim φ60 × 4 mm E355 raj rau European actuator tsum, peb inline profileometer tau nkag Ra 0.35 μm hla 300 meters. Thaum ambient humidity hloov thiab coolant viscosity drifted me ntsis, lub system flagged ib tug qauv mus rau Ra 0.45 μm. Peb tus kws kho mob tau kho qhov kub hnyiab los ntawm 3 bar thiab khiav ib qho luv luv tshem tawm - tsis muaj seem, tsis muaj kev ncua. Yog vim li cas peb saib xyuas kev ua tiav hauv lub sijhawm tiag tiag, tsis yog ntawm kev tshuaj xyuas zaum kawg nkaus xwb.
Cov qauv uas txhais tau tias "Am txais" tas
Peb ua raws li cov ntaub ntawv kev ntxhib los mos nrog cov qauv kev lees paub thoob ntiaj teb:
- TS EN ISO 1302: Qhia meej yuav ua li cas qhia qhov roughness, waviness, thiab nteg ntawm engineering kos duab;
- ISO 4287/4288: Txhais qhov tsis xws li Ra, Rz, thiab ntsuas qhov ntev txiav;
- ASME B46.1: Feem ntau hais los ntawm North American cov neeg muas zaub rau saum npoo zoo nkauj symbology.
Rau cov ntawv thov hydraulic, peb feem ntau taug qab Rz Tsawg dua lossis sib npaug li 10 μm nrog Ra, vim qhov siab siab tshaj - tsis yog qhov nruab nrab roughness nkaus xwb - cuam tshuam rau micro- qhov kev pheej hmoo ntawm kev tawm dag zog hauv lub zog siab. Txhua daim ntawv pov thawj ntawm kev sib raug zoo suav nrog qhov ntsuas qhov tseeb, tsis yog "hauv spec" nqe lus.
Yuav Ua Li Cas Peb Ntsuas: Cov Cuab Yeej, Calibration, thiab Traceability
Hauv peb lub chaw kuaj mob zoo, qhov roughness ntawm qhov chaw raug txheeb xyuas siv:
- Hu rau profileometers nrog 2 μm vojvoog pob zeb diamond tswv yim rau Ra / Rz ntawm cov qauv daim coupon;
- Tsis yog -hu rau optical scanners rau tag nrho - ntev ID daim ntawv qhia ntawm cov khoom tseem ceeb;
- Calibration blocks traceable rau lub teb chaws cov qauv, kuaj ua ntej txhua qhov kev hloov.
Peb kuj tseem sau cov ntaub ntawv ntsuas: txiav qhov ntev (feem ntau 0.8 hli rau Ra <1.6 μm), ntsuas qhov ntev, thiab hom lim. Qhov no ua kom cov neeg siv khoom tuaj yeem rov ua cov txiaj ntsig ntawm lawv qhov kawg. Ib tus neeg ua haujlwm hauv tsheb thauj khoom ib zaug tau tshaj tawm qhov tsis sib xws Ra qhov tseem ceeb ntawm peb daim ntawv pov thawj thiab lawv qhov kev tshuaj xyuas tuaj. Tom qab sib piv cov kev teeb tsa, peb pom tias lawv siv 2.5 hli txiav tawm piv rau peb 0.8 hli. Aligning ntsuas raws tu qauv daws qhov tsis sib xws- tsis tas yuav hloov txheej txheem.
Thaum Ua tiav Qhov Tseem Ceeb Tshaj Plaws: Daim Ntawv Thov Kev Qhia
- Pneumatic lub tog raj kheej: Ra Tsawg dua lossis sib npaug ntawm 1.6 μm feem ntau txaus; tsom rau kev huv thiab nteg uniformity;
- Hydraulic systems: Ra 0.2-0.4 μm nrog kev kub hnyiab txo qhov kev sib tsoo thiab ua kom ntev kev pab cuam lub neej;
- Precision shafts lossis cov lus qhia: Muab cov duab txias nrog lub teeb sib tsoo yog tias yuav tsum muaj Ra <0.2 μm.
Peb pob tshab: yog tias koj tus qauv tsim xav tau daim iav tiav lossis ultra-waviness qis, kev kos duab txias ib leeg yuav xav tau polishing ntxiv. Peb mam li qhia qhov ua ntej- nrog rau cov ntaub ntawv ntawm tus nqi thiab lub sijhawm ua haujlwm.
Cia peb ua raws li koj cov kev xav tau saum npoo av
Yog tias koj muaj peev xwm tsim nyog rau txoj haujlwm tshiab, peb zoo siab los qhia cov qauv kev qhia txog kev ntxhib los mos, ntsuas cov txheej txheem, lossis khiav kev tshuaj xyuas txog koj daim duab. Ntawm Wuxi LongWei Precision Tube, qhov zoo ntawm qhov chaw tsis yog qhov chaw kuaj zaum kawg - nws tau ua rau txhua qhov kev tuag, txhua qhov ntsuas, txhua qhov ntsuas peb tsim. Xa koj daim ID kam rau ua, daim ntawv thov siab, thiab hom foob rau peb pab pawg engineering. Wb tham txog kev ntsuas tiav, tsis yog tus lej Ra xwb.
