Lub hexagonal ntoo ntsia hlau yuav tsum tsis txhob raug tso tawm los ntawm tus lej ntsuas thiab qhov ntev ib leeg. Ua ntej kev tsim khoom, tus neeg yuav khoom thiab tus neeg muag khoom xav tau ib qho kev pom zoo tshwj xeeb uas kho cov ntsia hlau txoj kab uas hla, qhov ntev ntawm lub hauv paus, xov geometry, taw tes, hex-lub taub hau qhov ntev, cov khoom siv, tiav, txheej txheem installation, substrate thiab lees txais cov pov thawj. Lub qhov pilot belongs rau hauv daim ntawv thov specification thiab. Ib thov #8 ntoo ntsia hlau laum me me tsis tuaj yeem xaiv qhov kev ntseeg siab yam tsis paub txog cov ntsia hlau ntsuas lub hauv paus kab thiab qhov ntom thiab qhov xwm txheej ntawm cov ntoo. Kev khov kho cov kev sib txuas sib txuas no tiv thaiv cov qauv uas txhim kho kom raug los ntawm kev ua ntau lawm uas faib cov ntoo, strips qhov sib koom ua ke lossis tsis haum rau tus neeg tsav tsheb.
Pib nrog kev sib koom ua ke, tsis yog qhov loj me
Thawj cov lus nug tseem ceeb yog dab tsi cov ntsia hlau yuav tsum clamp. Khoom softwood, tuab hardwood, laminated ntoo thiab ntoo-raws li panels tsis teb ib yam rau tib xov thiab pilot qhov. Qhov txuas txuas kuj tseem ceeb. Lub nplhaib hlau yuav xav tau kev tshem tawm ib ncig ntawm cov ntsia hlau shank, thaum lub cav ntoo-rau-ntug ntoo tuaj yeem nyob ntawm kev sib koom tes ntawm cov tswv cuab tseem ceeb. Ntug nrug, qhov kawg nrug, kev coj noj coj ua, cov dej noo thiab kev nkag mus rau cov cuab yeej installation tuaj yeem hloov qhov kev xaiv ua haujlwm.
Cov lus piav qhia ntawm daim ntawv thov no yuav tsum tau txiav txim siab ua ntej xaiv ntawm qhov dav self-tapping ntsia hlau ntau yam. Nws qhia rau tus neeg muag khoom seb qhov kev thov cuam tshuam li cas rau daim ntawv thov kev sib txuas ntawm cov ntoo zoo tib yam, kev sib txuas ntawm cov hlau-rau-ntoo, kev sib dhos ua ntej los yog kev sib koom ua ke uas yuav tsum tau txais kev pom zoo los ntawm qhov project tshwj xeeb engineering. Lub npe khoom tsis tuaj yeem hloov qhov txawv ntawd.
Rau cov txheej txheem lossis kev ruaj ntseg-tseem ceeb ntawm cov ntoo sib txuas, qhov project engineer tus tsim thiab cov cai siv hauv zos tseem tswj tau. Ib tus neeg muag khoom tuaj yeem tsim khoom raws li kev pom zoo kos duab thiab muab pov thawj tshuaj xyuas, tab sis daim ntawv xaj yuav tsum tsis txhob hais tias lub catalog ntsia hlau tau pom zoo rau cov ntaub ntawv thauj khoom uas tsis tau txhais.
Khaws cov ntsia hlau tus kheej hauv cov ntsiab lus ntsuas
Gauge designations yog yooj yim, tab sis lawv tsis txaus rau kev yuav khoom thoob ntiaj teb. Tus neeg yuav khoom tuaj yeem sau "# 8," thaum daim duab kos duab, ntsuas txoj kev lossis lub rooj sib tham hauv zos siv los ntawm tus neeg muag khoom txhais cov kab sib txawv sib txawv. Cov ntaub ntawv pom zoo yuav tsum yog li ntawd suav nrog lub npe nominal thiab qhov ntev uas txheeb xyuas qhov tseeb.
| Specification teb | Dab tsi yuav tsum tau kho | Cov ntaub ntawv lees paub muaj txiaj ntsig |
| Txoj kab uas hla | Nominal gauge ntxiv rau kev pom zoo loj, shank thiab cag-diameter txhais | Pom zoo daim duab thiab daim ntawv qhia qhov ntev |
| Ntev | Nominal ntev thiab qhov ntsuas qhov tseeb | Kev kos duab nrog txoj kev tshuaj xyuas |
| Xov | Pitch, form, threaded length, run-out thiab xav tau kev koom tes | Piv txwv, kos profile lossis cov ntaub ntawv pom zoo |
| Taw tes | Point style thiab seb yuav tsum muaj lub qhov pilot | Pom zoo coj mus kuaj thiab kev teeb tsa |
| Hex taub hau | Hla-flats dimension, lub taub hau qhov siab thiab bearing-face geometry | Dimensional report thiab driver-fit check |
| Khoom siv thiab tiav | Cov khoom siv hauv paus, txhua yam yuav tsum tau ua, txheej txheej txheej thiab cov kev txwv tsis zoo | Daim ntawv pov thawj tshwj xeeb thiab cov ntaub ntawv tshuaj xyuas ntau |
| Ntim | Quantity ib pob, daim ntawv lo, ntau tus kheej thiab export packing | Pom zoo packing specification |
Ntev yuav tsum tau saib xyuas tshwj xeeb. Yog tias ob tog ntsuas los ntawm kev siv lub taub hau sib txawv, tib lub npe piav qhia yuav ua rau muaj txiaj ntsig sib txawv. Threaded ntev kuj cuam tshuam rau kev sib koom ua ke: ntau qhov ntev tag nrho tsis tuaj yeem muab kev tuav pov hwm zoo dua thaum ib feem ntawm cov ntsia hlau hla dhau los ntawm tus tswv cuab clearance los yog thaum cov xov txuas txuas ntxiv dhau ntawm cov tswv cuab tseem ceeb.
ASME B18.6.1 muab cov ntaub ntawv dav dav thiab dav rau kev lees paub inch-series ntoo screws, tab sis nws tsis txhais tau tias txhua daim ntawv teev npe yog cov khoom lag luam. Ib qhov project kos duab lossis kev yuav khoom tshwj xeeb tseem xav tau los txheeb xyuas qhov kev yuav khoom. Rau qhov tsis yog-tus qauv hexagonal ntoo ntsia hlau, daim duab pom zoo yog qhov tseem ceeb tshwj xeeb vim tias lub taub hau style yuav tsis poob rau hauv cov ntawv slotted los yog recessed los ntawm tus qauv ntawd.
Tsis muaj universal #8 ntoo ntsia hlau laum me me
Ib daim ntawv laum-ntsis tuaj yeem yog qhov pib siv, tsis yog cov lus qhia ntau lawm. Tus tsav lub qhov rau qhov threaded feem yuav tsum muaj feem xyuam rau cov ntsia hlau lub hauv paus txoj kab uas hla, thaum lub clearance seem nyob ib ncig ntawm ib tug unthreaded shank yuav tsum tau ua raws li lub shank txoj kab uas hla. Siv ib qho kev xyaum me me los ntawm ob tus tswv cuab tuaj yeem tshem tawm cov ntoo ntau dhau los ntawm tus tswv cuab tuav lossis tsim kev tsav tsheb tsis tsim nyog hauv cov tswvcuab tshem tawm.
Ntoo ntom ntom hloov qhov sib npaug. Kev tshawb fawb luam tawm los ntawm USDA Forest Products Laboratory piav txog cov ntoo-ntsia hlau lead qhov ntawm kwv yees li 70% ntawm txoj kab uas hla ntawm cov hauv paus ntoo hauv cov ntoo mos thiab txog 90% hauv cov ntoo tawv rau cov kev sib raug zoo uas tau tham hauv nws Phau Ntawv Ntoo. Tib lub hauv paus piav qhia tias, rau cov pob qij txha tom qab, qhov shank feem ntawm lub qhov taub yog feem ntau ntawm lub shank txoj kab uas hla los yog me ntsis me me, thaum lub threaded feem nyob ze ntawm cov xov-kab txoj kab uas hla nyob rau hauv ntom hom thiab me me nyob rau hauv qis-density hom.
Cov kev sib raug zoo no piav qhia tias yog vim li cas universal decimal los yog cov lus teb feem ntau rau "ntoo ntsia hlau laum loj" tsis zoo. The correct production release should state the actual screw geometry, wood species or density range, moisture condition, grain direction and whether the hole is for clearance or thread engagement. Kev teeb tsa luv luv ntawm cov khoom sawv cev tuaj yeem paub meej tias tsav lub zog, sib cais, zaum thiab xov stripping ua ntej qhov kev txiav txim raug kaw.
Kev sib koom ua ke ntawm xov thiab ntug tej yam kev mob yuav tsum tau soj ntsuam ua ke
Tuav tus cwj pwm nyob ntawm ntau dua li tag nrho cov ntsia hlau ntev. Xov txoj kab uas hla, qhov tob ntawm qhov nkag thiab ntoo ntom ntom sib cuam tshuam. Kev nkag mus nce ntxiv tuaj yeem txhim kho kev tshem tawm tsis zoo nyob rau hauv qhov siv tau, tab sis nws tsis kho qhov kev tsav dav dav, cov ntoo fibers puas lossis tsis txaus nyob ntawm ntug. Cov ntoo tuab tuaj yeem muab cov xov muaj zog txhawb nqa thaum tseem tsim kom muaj kev sib cais ntau dua thiab kev teeb tsa-torque txaus ntshai.
End-grain fastening kuj yuav tsum tau ceev faj. Kev ua tau zoo tuaj yeem sib txawv ntawm sab-grain installation, thiab kev sib koom ua ke tsim yuav tsum tsis txhob hloov cov kev xav ntawm ib qho kev taw qhia mus rau lwm qhov yam tsis muaj kev txheeb xyuas. Yog tias cov ntsia hlau nyob ze rau qhov kawg lossis ntug, daim duab kos yuav tsum qhia qhov tseeb qhov chaw thiab cov lus qhia. Rau cov khoom siv ntoo ua haujlwm, cov khoom lag luam cov kev taw qhia fastening tuaj yeem tsim cov kev txwv ntxiv uas yog qhov tseem ceeb tshaj li daim ntawv qhia kev xyaum.
Kev sim ua ntej ua ntej yuav sau cov substrate, pilot-hole txoj kab uas hla thiab qhov tob, tus neeg tsav tsheb ceev, qhov chaw zaum thiab txhua qhov pom kev sib cais. Qhov tshwm sim yog qhov tseem ceeb dua thaum ob tus neeg yuav khoom thiab tus neeg muag khoom khaws cov qauv kev pom zoo ntawm cov ntsia hlau thiab cov kev sim teeb tsa es tsis pom zoo ib daim duab xwb.
Lub taub hau geometry tswj cov cuab yeej thiab cov kabmob ntawm qhov chaw
Lub taub hau hex yuav tsum haum lub cuab yeej installation yam tsis muaj kev tshem tawm ntau dhau. Hla-flats loj, lub kaum sab xis thiab lub taub hau qhov siab cuam tshuam rau kev sib koom ua ke ntawm lub qhov (socket), tshwj xeeb tshaj yog qhov kev nkag mus tau txwv lossis siv cov tsav tsheb. Lub ntsej muag bearing yuav tsum haum rau cov khoom txuas nrog. Ib cheeb tsam me me ntawm cov khoom muag tuaj yeem ua rau qhov chaw ua ntej qhov sib koom ua ke mus txog qhov kev npaj clamp; ib lub tshuab ntxhua khaub ncaws los yog lub taub hau flange-style yuav xav tau los ntawm kev sib koom ua ke.
Cov kev xaiv no yuav tsum pom ntawm daim duab. Cov ntsiab lus xws li "hex taub hau," "hex flange" thiab "nrog washer" tsis hloov pauv. Yog tias lub tshuab ntxhua khaub ncaws muab cais, nws txoj kab uas hla sab hauv, sab nraud txoj kab uas hla, thickness, hardness thiab tiav yuav tsum tau lawv tus kheej txhais. Yog tias nws raug ntes los yog kev sib xyaw ua ke, cov duab sib dhos yuav tsum tswj lub interface.
Cov khoom siv thiab txheej txheej yog kev txiav txim siab ntawm daim ntawv thov
Daim ntawv teev cov khoom rau Wotu's hexagonal ntoo screws npe xiav-dawb zinc plating, ntsuas kev xaiv los ntawm 6 # txog 20 #, ntev los ntawm 35 hli mus rau 250 hli thiab kev txhawb nqa rau qhov tsis yog tus qauv ntev thov. Cov no yog cov khoom muaj tseeb, tsis yog hloov rau qhov project specification. Tus neeg yuav khoom tseem yuav tsum txheeb xyuas qhov kab uas hla, qhov ntev thiab ua tiav haum rau qhov chaw nruab.
Cov kev pabcuam qhuav hauv tsev, sab nrauv raug thiab tiv tauj nrog cov ntoo kho tuaj yeem ua rau muaj kev sib txawv corrosion. Lub npe tiav ib leeg tsis txhais cov txheej thickness, corrosion-test duration, tsos txwv los yog compatibility nrog cov khoom txuas. Yog tias ib qho ntawm cov yam ntxwv yuav tsum tau, lawv muaj nyob rau hauv kev yuav khoom specification thiab yuav tsum tau txais kev txhawb nqa los ntawm kev pom zoo los yog daim ntawv xeem.
Cov kev cai siv tshuab kuj xav tau ib nqe lus cais. Cov ntsia hlau nyuaj tuaj yeem ua rau muaj kev ntxhov siab ntau dua, tab sis cov khoom siv, xov tsim thiab kev kho cua sov tuaj yeem cuam tshuam cov ductility thiab kev puas tsuaj. Tsis yog xav tias kev ua tau zoo los ntawm qhov tshwm sim, txhais cov kev xav tau ntawm kev siv tshuab thiab thov cov pov thawj tsim nyog rau qhov kev txiav txim.
Kev pom zoo yuav tsum ua raws li qhov kev lees paub ntau lawm
Ib qho qauv tuaj yeem paub meej tias haum thiab kev teeb tsa, tab sis tsuas yog tias nws sawv cev rau cov lus qhia tawm. Kos tus qauv nrog daim duab kho dua thiab sau cov kev ntsuas uas tseem ceeb. Yog tias kev tsim khoom tom qab tau pom zoo tawm tsam qhov sib txawv, txheej lossis xov ntev, cov qauv qub tsis ua pov thawj qhov sib npaug.
Txoj kev tshuaj ntsuam xyuas yuav tsum hais tias qhov ntsuas qhov ntev npaum li cas, cov qauv hauv paus, ntsuas txoj kev ntsuas thiab kev kho qhov sib txawv. Rau hexagonal ntoo screws, cov kev txheeb xyuas muaj txiaj ntsig yuav suav nrog cov kab loj thiab cov hauv paus hniav, tag nrho thiab cov xov ntev, lub taub hau qhov ntev, taw tes geometry, txheej txheej thiab tus neeg tsav tsheb haum. Cov ntawv ntim yuav tsum khaws ntau tus kheej kom cov ntaub ntawv soj ntsuam tuaj yeem taug qab mus rau lub thawv xa khoom.
Feem ntau tso tawm yuam kev uas tsim kom muaj kev tsis sib haum xeeb
- Ordering los ntawm gauge thiab tag nrho ntev yam tsis muaj kev pom zoo kos duab kos duab.
- Kev luam tawm tus nqi tsav-qhov tsis tau txheeb xyuas qhov ntom ntom ntoo, hauv paus txoj kab uas hla lossis qhov ua haujlwm.
- Pom zoo lub taub hau yam tsis tau kuaj xyuas lub qhov (socket) tiag tiag lossis kev teeb tsa tshem tawm.
- Siv lub npe tiav yam tsis tau txhais cov ntaub ntawv pov thawj uas yuav tsum tau ua los yog ib puag ncig kev pabcuam.
- Hloov xov ntev lossis taw tes geometry tom qab kuaj pom zoo yam tsis tau hloov kho cov ntaub ntawv tswj.
- Sib piv cov lus hais uas siv cov ntim sib txawv, tshuaj xyuas lossis cov ntaub ntawv teev tseg.
Txhua qhov yuam kev pib raws li qhov sib txawv ntawm cov ntaub ntawv. Thaum pib ntau lawm, nws dhau los ua tus nqi, sijhawm lossis teeb meem kev lees paub. Qhov kev daws teeb meem zoo tshaj plaws yog luv luv tab sis ua tiav cov pob tso tawm sib koom los ntawm kev yuav khoom, engineering, zoo thiab tus neeg muag khoom.
Cov lus nug cov neeg yuav khoom feem ntau nug ua ntej pom zoo rau cov ntsia hlau ntoo
Puas yog # 8 ntoo ntsia hlau siv ib qho kev ntsuas qhov loj me?
No. The pilot hole should be selected from the screw’s measured root and shank diameters, the wood density and moisture condition, and whether the hole provides clearance or thread engagement. Paub meej qhov tshwm sim ntawm cov khoom sawv cev.
Puas yog ntsia hlau ntev txaus los txhais kev nkag mus?
Tsis yog. Daim duab kos yuav tsum qhia tias qhov ntev npaum li cas yog ntsuas, qhov tuab ntawm cov tswv cuab txuas nrog, qhov ntev threaded thiab qhov xav tau nkag mus rau hauv cov tswv cuab tseem ceeb. Cov txiaj ntsig no txiav txim siab ntau npaum li cas cov xov tiag koom nrog ntoo.
Cov qauv pom zoo puas tuaj yeem hloov daim duab?
Ib qho qauv yog qhov tseem ceeb rau kev haum thiab kev teeb tsa, tab sis nws yog qhov nyuaj rau siv los ua ib qho kev tsim khoom thiab tshuaj xyuas. Kev pom zoo kos duab nrog kev tswj xyuas kev hloov kho ua rau qhov kev lees txais thiab rov txiav txim siab dua.
Thaum twg cov neeg yuav khoom yuav tsum thov qhov kev sim teeb tsa?
Kev sim yog tsim nyog thaum hom ntoo, qhov ntom ntom, noo noo, ntug nrug, qhov kawg lossis kev tsav tsheb txawv ntawm qhov kev txiav txim yav dhau los, lossis thaum sib cais, stripping thiab zaum yog qhov tseem ceeb ntawm kev txaus siab.
Tsim lub RFQ nyob ib ncig ntawm ib qho kev tso tawm pob
Rau kev sib piv cov lus hais, xa cov lus piav qhia ntawm daim ntawv thov, ntsia hlau kos duab, thov ntsuas thiab ntev, cov ntaub ntawv ntoo lossis vaj huam sib luag, cov phiaj xwm pilot-qhov, lub taub hau thiab tus neeg tsav tsheb xav tau, cov khoom siv thiab tiav, kom muaj nuj nqis, ntim thiab tshuaj xyuas xav tau. Nug tus neeg muag khoom kom xa rov qab qhov loj me, tshaj tawm qhov sib txawv, cov ntaub ntawv nthuav dav thiab cov qauv qauv es tsis lees paub tsuas yog cov npe khoom.
Wotu txhawb nqa kev xaiv qhov loj me thiab tsis yog tus qauv ntev thov nyob rau hauv cov khoom lag luam tau piav qhia saum toj no. Xa cov kev tswj xyuas los ntawm lub fastener project nug daim ntawv. Thaum cov txheej txheem thev naus laus zis thiab cov pov thawj lees paub tau ua tiav, tus nqi thiab lub sijhawm ua haujlwm tuaj yeem muab piv rau tib lub hauv paus.
