Nws puas yooj yim rau tho qhov hauv Q235NH? -} kev paub

1. Vim li cas Q235NH yog qhov yooj yim los kav: Cov Khoom Siv Khoom Siv Tseem Ceeb

Q235NH yog aTsawg -} Cov Hluav Taws Xob Hlau Me Hlau(Cov ntsiab lus carbon tsawg dua los yog sib npaug rau 0.17%), nrog ob lub zog tseem ceeb uas nyiam siv hluav taws xob:

Tsawg zog zog: nws brinell hardness (HB) feem ntau yog feem ntau 130-170, ntau dua li siab dua {2}, Q355, HB 180-220) lossis cov hlau sib dhos. Qhov no txhais tau tias Laum Bits ntsib tsawg tiv lub sijhawm txiav.

DUA QIB: Nws muaj siab elongation (ntau dua los yog sib npaug nrog 26%), yog li nws yuav tsis tawg lossis nti tau yooj yim thaum lub qhov tob lossis nyias daim hlau.

Hauv ntej, nws lub tshuab luam ntawv zoo ib yam li Q235 steel (tsis yog}- huab cua zoo), thiab leej twg paub nrog cov hlau qhuav steel tuaj yeem lis nws.

2. Cov ntawv tseem ceeb kom tsis txhob muaj teeb meem thaum lub sijhawm khiav

Thaum nws yooj yim rau tho, tsis quav ntsej cov ntsiab lus no yuav ua rau Tool puas zoo, lossis tseem cuam tshuam rau cov hlau tshav ntuj:

(1) Xaiv txoj cai laum me ntsis

Rau cov hom phiaj dav dav (cov qhov drilling qis dua lossis sib npaug nrog 15 hli hauv lub taub, phaj tuab tsawg dua lossis sib npaug rau 10mm): sivhigh - Ceev Hlau (HSS) Laum Cov Khaub Ncaws(piv txwv li, hss - co, uas muaj cov cua sov tsis kam). Lawv raug nqi -} Ua tau zoo thiab ua haujlwm zoo nrog Q235NH.

For larger holes (>15mm) or thicker plates (>10 hli): sivcarbide -} tipped Laum KhoomCov. Lawv muaj lub siab tawv dua thiab hnav tsis kam, txo qhov xav tau rau cov cuab yeej siv nquag hloov thiab ua kom cov phab ntsa sab hauv.

Zam kev siv cov khoom siv npub me: Cov khoom me me yuav ua rau muaj kev txiav tawm, ua rau lub qhov hlau (thiab txawm tias overhineat txheej huab cua (uas tej zaum yuav ua rau cov huab cua sab nraud).

(2) teeb tsa cov tsis haum

Tsis raug cai ceev lossis pub mis yuav txo cov txiaj ntsig lossis puas cov cuab yeej. Siv tsis tau rau cov xwm txheej ib txwm:

Tho Khoom Siv	Txoj kev uas hla (hli)	DRILLING ceev (m / min)	Pub tus nqi (hli / rev)
Hss	3–8	25–35	0.1–0.2
Hss	8–15	15–25	0.2–0.3
Carbide -} tipped	15–30	30–50	0.15–0.25

Txhawm rau kev tuav cov tshuab drilling: kho cov spindle ceev raws li lub taub hniav me me (me me {}} dua qhov nrawm, loj dua= qhov nrawm nrawm).

For CNC drilling: Use coolant (e.g., water-soluble cutting fluid) to reduce heat and tool wear-this is especially important for holes >20mm or deep holes (depth-to-diameter ratio >3:1).

(3) Tiv thaiv txheej huab cua thiab qhov zoo

Clamp lub workpiece khov kho: Siv cov vice lossis fixsture los kho Q235NH daim phiaj, zam kev kev co, kom tsis txhob co thaum lub taub hau tsis sib xws los yog deviar lub qhovces).

Laum los txog qhov zoo: Thaum lub laum me ntsis yog hais txog kom nkag mus rau cov hlau (kawg 1-2mm), txo cov nqi pub kom tiv thaiv "breakthrough burrs" (loj burrs nyob sab nraum qab ntawm lub qhov).

Deburr lub qhov ntug: Tom qab kev kaw, siv cov ntaub ntawv lossis cov kev deburring lossis deburring tool kom tshem tawm burrs ntawm ob sab ntawm lub qhov. Qhov no tiv thaiv cov khawb thaum lub sijhawm teeb tsa tom ntej thiab zam kev corrosion hauv zos (burrs cuab noo noo noo yooj yim).

Zam kev ua kom muaj kev puas tsuaj ntawm huab cua: Tsis txhob siv cov khoom txias dhau (lossis so tawm cov chaw so

3. Tshwj xeeb scenario: drilling nyias Q235Nh daim hlau (<3mm)

Rau cov paib loj heev, txoj kev pheej hmoo tseem ceeb yog "warping" lossis "qhov deformation" vim kev txiav txim siab. Yuav kom tsis txhob muaj no:

Siv ib lub phaj thaub qab (piv txwv li, ib qho hlau los yog tuab) nyob rau hauv daim phaj nyias nyias los txhawb nws thaum lub sijhawm tho.

Xaiv lub laum me ntsis nrog lub ntsej muag ntse kaum (118℃yog qhov zoo tagnrho) kom txo qis quab yuam ntawm lub phaj.

Txo tus nqi pub rau 0.05-0.1mm / Rev kom txo kev deformation.

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