Tej yaam num

1. Cov yeeb nkab steel txais yuav Q235B, welded steel yeeb nkab (GB / T 3092) lossis seamless steel yeeb nkab (GB / T 8162) tuaj yeem siv.

2. Lub pob steel yog ua los ntawm No. 45 steel forgings uas ua tau raws li "Technical Conditions for High-Quality Carbon Structural Steel" GB 699, thiab lub zog tawm los yog 360N / mm2.

3. Lub zog muaj zog bolts rau qhov chaw thav duab yog ua los ntawm 40Cr quenched thiab tempered thiab kub-kho raws li "Technical Conditions of High-Quality Carbon Structural Steel" GB/T 16939.

4. Lub sealing phaj ntawm lub khob lub taub hau yog ua los ntawm Q235B steel, thiab lub khob hliav qab lub taub hau yog ua los ntawm forgings.Sab hauv txoj kab uas hla ntawm lub casingM33 txais Q355B.

5. Cov txiv ntoo tsis muaj xov yog ua los ntawm Q235B steel forgings.Thaum txoj kab uas hla ntawm lub zog siab bolts yog> M30, siv 45-gauge steel forgings.

6. Lub fastening screws yog ua los ntawm 40Cr uas tau raug quenched thiab tempered.

7. Q235B steel yog siv rau kev txhawb nqa, embedded phaj, kev txhawb nqa thiab nws cov khoom sib txuas.

8. Cov purlins yog ua los ntawm txias-tsim nyias-walled steel ua los ntawm Q235B steel.

9. Cov bolts zoo tib yam yog ua los ntawm C-qib bolts ua los ntawm Q235 steel uas ua tau raws li cov kev cai ntawm lub teb chaws tus qauv tam sim no, thiab qib kev ua tau zoo yog 4.8.

10. Cov qib steel uas tau hais los saum toj no yuav tsum muaj cov ntaub ntawv pov thawj zoo thiab cov ntaub ntawv rov qab tshuaj xyuas, raws li cov kev cai ntawm cov qauv hauv tebchaws tam sim no.

11. Cov electrodes thiab cov xov hlau uas siv rau vuam yuav tsum ua tau raws li cov qauv hauv lub tebchaws tam sim no.Vuam ntawm Q235B steels txais E43 series electrodes.

12. Qhov piv ntawm qhov ntsuas tus nqi ntawm lub zog tawm los rau qhov ntsuas tus nqi ntawm lub zog tensile ntawm cov hlau yuav tsum tsis txhob ntau tshaj 0.85.

13. Cov hlau yuav tsum muaj cov kauj ruam ua kom pom tseeb, thiab qhov elongation yuav tsum tsis pub tsawg tshaj 20%.

14. Cov hlau yuav tsum muaj qhov zoo weldability thiab tsim nyog cuam tshuam toughness.Thaum nws yog Q235B steel, nws cov qauv zoo yuav tsum ua raws li "Carbon Structural Steel" (GB700-88), thiab thaum nws yog Q355B, nws cov qauv zoo yuav tsum ua raws li "Low Alloy High Strength Structural Steel" GB / T1491, tag nrho cov hlau yuav tsum muaj tensile lub zog muaj peev xwm lav rau lub zog, elongation, yield zog, txias dabtsi yog khoov kuaj thiab carbon, sulfur thiab phosphorus ntsiab lus.Cov qauv welded kuj tseem yuav muaj kev lees paub zoo ntawm cov ntsiab lus carbon.