Yuav ua li cas txiav txim siab seb qhov kho lub nkoj siab puas tsim nyog?

I. Qhov tshwm sim thiab Geometric Dimensions Inspection Tsim Nyog Cov tsos zoo ntawm qhov chaw kho yog thawj qhov chaw kuaj xyuas thiab yuav tsum ua raws li cov cai hauv qab no:

1. Zoo Weld Tsim: Cov weld yuav tsum hloov mus rau cov khoom siv hauv paus, tsis muaj cov ces kaum ntse, hloov pauv sai, lossis cov qauv kev ntxhov siab.

2. Tsis muaj qhov tsis xws luag: Qhov kho qhov vuam thiab cua sov- thaj tsam cuam tshuam yuav tsum tsis muaj qhov tsis xws luag xws li tawg, tsis muaj fusion, undercut (qhov tob> 0.5mm), arc craters, thiab porosity.

3. Fillet Weld Shape: Nws yuav tsum yog concave, hloov mus rau cov khoom siv hauv paus, zam txoj cai - lub kaum sab xis sib txuas.

4. Geometric Dimensions Raws li:
Plhaub Straightness tsawg dua los yog sib npaug rau 1H / 1000 (H yog lub plhaub ntev);
Plhaub Roundness (qhov sib txawv ntawm qhov siab tshaj plaws thiab qhov tsawg kawg nkaus sab hauv txoj kab uas hla) Tsawg dua lossis sib npaug li 1% Di thiab Tsawg dua lossis sib npaug li 25 hli (Di yog lub taub sab hauv);
Flange Lub ntsej muag Perpendicularity Tsawg dua los yog sib npaug li 1% ntawm flange sab nraud txoj kab uas hla thiab Tsawg dua los yog sib npaug li 2 hli.

II. Tsis yog-Kev Ntsuam Xyuas Kev Puas Tsuaj (NDT) Kev Ua Raws Cai NDT yog txoj hauv kev tseem ceeb rau kev txheeb xyuas qhov kev kho kom zoo thiab yuav tsum npog cov vuam vuam thiab qhov chaw nyob ib puag ncig.

1. Kev tshuaj xyuas saum npoo:

Sib nqus particle kuaj (MT) yog siv rau cov ntaub ntawv ferromagnetic; Kev ntsuam xyuas penetrant (PT) yog siv rau cov khoom tsis yog -ferromagnetic. Tus qauv xeem yog raws li NB / T 47013-2015. Tsis pub muaj kab nrib pleb (Level I txais).

2. Kev tshuaj xyuas sab hauv:

Kev kuaj ultrasonic (UT) lossis kuaj hluav taws xob (RT) yog siv los tshuaj xyuas qhov tsis xws luag sab hauv.

Thaum siv cov kev ntsuas hluav taws xob, qhov hluav taws xob zoo yuav tsum tsis pub qis dua Qib AB, thiab qib kev lees txais yuav tsum yog Qib II lossis III (nyob ntawm seb hom nkoj). Rau kev kho welds, qhov kev soj ntsuam ntev yuav tsum tsis pub tsawg tshaj 20% ntawm tag nrho cov vuam ntev. Yog tias pom muaj qhov tsis xws luag dhau tus qauv, kev kuaj ntxiv yuav tsum ncav cuag 100%.

✅ Cov Lus Cim Tshwj Xeeb: Rau cov hlau uas muaj cov qauv tensile lub zog loj dua lossis sib npaug ntawm 540MPa, Cr-Mo steel, stainless hlau, thiab cov hlab ntsha ua rau muaj kev ntxhov siab corrosion, qhov chaw vuam yuav tsum tsis muaj qhov cuam tshuam.

III. Kev Xeem Siab dhau - Txheeb xyuas qhov muaj zog tag nrho
Kev ntsuas siab yog qhov tseem ceeb tshaj plaws hauv kev txheeb xyuas tom qab kho, siv los xyuas tag nrho lub zog thiab kev sib khi ua haujlwm ntawm lub thawv.

1. Cov xwm txheej yuav tsum tau rov ntsuas dua:

Kho qhov tob tshaj ib nrab ntawm phab ntsa thickness;
Hloov cov siab loj-cov kabmob (piv txwv li, ntu lub tog raj kheej, taub hau);
Kev kho ntau yam lossis kev cuam tshuam tseem ceeb ntawm cov qauv qub.

2. Hom kev xeem:

Kev sim hydraulic (piv txwv li, kev sim hydrostatic) yog qhov zoo dua vim nws txoj kev nyab xeeb siab; Yog tias cov kua filling tsis tuaj yeem siv tau, kev sim pneumatic tuaj yeem siv tau, tab sis nws yuav tsum tau ua kom ntseeg tau tias Class A thiab B welds tau dhau 100% UT lossis RT tshuaj xyuas.

3. Kev lees txais:

Tsis muaj dej;
Tsis pom deformation;
Tsis muaj suab nrov txawv txav;
ruaj khov thaum lub sij hawm tuav.

IV. Kev Nyab Xeeb Accessories thiab Sab Nraud Kev Tshawb Fawb Kev Tshawb Fawb Ua tiav Ua ntej muab lub thawv kho kho rau siv, cov cuab yeej pabcuam hauv qab no yuav tsum tau lees paub kom nyob rau hauv ib txwm muaj:

1. Kev ruaj ntseg Accessories Validated:

Kev nyab xeeb li qub yog nyob rau hauv lawv lub sij hawm calibration siv tau thiab qhib thiab kaw rhiab heev;
Cov ntsuas ntsuas siab ua tau raws li qhov xav tau ntau yam thiab qhov tseeb, thiab kev nyeem ntawv zoo ib yam hauv tib lub cev;
Cov qib ntsuas tau pom meej meej thiab muaj qhov ntsuas siab thiab qis qis.

2. Sab Nrauv Sab Nrauv Tsis Zoo:

Kev txhawb nqa yog ruaj khov, thiab lub hauv paus tseem tsis tau kho;
Rwb thaiv tsev thiab tiv thaiv- cov khaubncaws sab nraud povtseg tau rov qab ua kom muaj kev ncaj ncees;
Kev sib txuas cov kav dej tsis muaj kev ntxhov siab ntxiv lossis kev co.

3. Airtightness Test (yog tias tsim nyog):

Rau cov thawv ntim cov khoom siv hluav taws xob, tawg, lossis tshuaj lom, yuav tsum tau kuaj airtightness;
Siv dej xab npum lossis lwm yam kev daws teeb meem, tsis muaj npuas yuav tsum tau tsim.

V. Cov Khoom Siv Ua Haujlwm thiab Kev Ntsuas Hardness (Raws Li Cov Txheej Txheem Tshwj Xeeb) Rau cov thawv ntim ua haujlwm nyob rau hauv qhov kub thiab txias, kev kub siab, lossis kev pabcuam tshwj xeeb, yuav tsum tau kuaj xyuas ntxiv ntawm cov khoom siv:

1. Cov ntaub ntawv pov thawj: Paub meej los ntawm kev soj ntsuam spectral tias cov khoom siv hauv thaj chaw kho tsis tau tsis meej pem;

2. Kev Ntsuas Hardness: Tshawb xyuas seb qhov hardness ntawm vuam thiab cua sov- thaj tsam cuam tshuam tshaj tus qauv los tiv thaiv hydrogen-induced cracking;

3. Metallographic Examination: Ntsuam xyuas seb lub microstructure puas tau deteriorated vim vuam thermal cycling (xws li, grain coarsening, nag lossis daus, thiab lwm yam).

VI. Ua kom tiav thiab Traceable Repair Records Tag nrho cov txheej txheem kho yuav tsum tau sau tseg hauv cov ntaub ntawv ua tiav, suav nrog:

Cov lus piav qhia tsis raug thiab tshem tawm cov ntaub ntawv;
Welding process parameters thiab welder tsim nyog;
Tsis yog-cov ntawv qhia kev puas tsuaj (MT, PT, UT, RT);
Cov ntaub ntawv kho cua sov (yog tias muaj);
Cov ntaub ntawv ntsuas siab;
Daim ntawv lees paub zaum kawg.