Dowel pins yog cov khoom me me cylindrical uas yog siv los ua kom sib haum thiab khi ob lossis ntau qhov chaw ua ke. Lawv yog cov yooj yim, tab sis tseem ceeb, cov khoom siv uas siv ntau yam kev lag luam, nrog rau cov khoom siv hluav taws xob, kev tsim khoom, tsheb, thiab kev tsim kho. Nov yog 5 lub ntsiab lus tseem ceeb ntawm dowel pins uas ua rau lawv ib qho tseem ceeb tivthaiv:
1. Khoom siv - Dowel pins yog ua los ntawm ntau yam ntaub ntawv xws li stainless hlau, carbon hlau, txhuas, tooj dag, thiab yas. Cov khoom siv yog nyob ntawm daim ntawv thov, ib puag ncig, thiab lub peev xwm thauj khoom uas xav tau.
2. Txoj kab uas hla - Dowel pins tuaj nyob rau hauv txawv diameters li ntawm 1/16 nti mus rau 2 ntiv tes. Txoj kab uas hla yog xaiv raws li qhov loj ntawm lub qhov thiab lub load uas tus pin yuav tsum nqa.
3. Ntev - Qhov ntev ntawm dowel pins kuj yog ib qho tseem ceeb rau kev txiav txim siab. Qhov ntev yuav tsum yog li hais tias tus pin ncav cuag thoob plaws hauv kev sib koom tes, tab sis tsis protrude tawm ntau dhau. Qhov ntev tuaj yeem nyob ntawm 1/8 nti mus rau 6 nti.
4. kam rau ua - Dowel pins tuaj nyob rau hauv ntau theem kam rau ua, los ntawm ib tug nruj kam rau ua ntawm +/- 0.0002 nti mus rau ib tug dav kam rau ua ntawm +/- 0.005 nti. Cov qib kam rau ua yog xaiv raws li daim ntawv thov thiab qhov tseeb xav tau.
5. Finish - Dowel pins tuaj yeem muaj ntau yam khoom tiav xws li dawb, dub oxide, zinc-plated, lossis passivated. Qhov tiav yog xaiv raws li daim ntawv thov thiab ib puag ncig uas tus pin yuav siv.
Hauv kev xaus, dowel pins tej zaum yuav yog cov khoom me me, tab sis lawv lub luag haujlwm hauv kev ua kom muaj kev sib raug zoo thiab kev nrawm ntawm qhov chaw yog qhov tseem ceeb. Xaiv cov khoom tsim nyog, txoj kab uas hla, ntev, kam rau ua, thiab ua tiav yog qhov tseem ceeb kom ntseeg tau tias kev ua tau zoo thiab kav ntev.
