Application of pipe welding machine

Categories:company news
Author:
Origin:
Time of issue:2020-03-13 14:37

(Summary description)Consumptionoilcasingcanbeweldedintwoways:hot-rolledseamlesssteelpipeandweldedpipeunit.Becausethereisaweldingseamintheoilcasingusedforwelding,itisthekeyofconsumptiontodealwiththematchingofthestrengthandtoughnessofthebasemetalandtheweldingseam,thegrayspotoftheweldingseam,andthecorrosionoftheweldingseam. TheperformancecharacteristicsofthepipeweldingmachinearethatthemoldisprocessedbyaCNCsystem,whichiswear-resistantandhighlyaccurate.Thesquaretubehasaflatmoldingsurfaceandasharpangle.Thepolishedsurfacecanreachthemirrorsurface,andtheroundnessoftheshapeandpositiontoleranceiswithin5mm;thediagonalofthesquaretubedoesnotexceed±0.5mm. Theconsumptionoilcasingoftheweldedpipeunitisaffectedbythetoughnessofthebasemetal,thechemicalcompositionofthebasemetalandtheweldingprocess.WhentheC,S,P,andCrelementsintherawstriparereduced,thetoughnessoftheweldcanbeimproved;whenthebrightlinewidth,streamlineangleandthecontentofnon-metallicinclusionsintheweldingprocessarecontrolled,Itcansignificantlyimprovethetoughnessoftheweld.Inaddition,thecontrolledcoolingoftheweldedpipeafterreducingthethermaltensioncanimprovethetoughnessoftheweldseamoftheweldingoilcasingandotherareasofthepipebody. Weldedpipecanusethreekindsofhardnesstestmethods:cloth,LuoandWei,tomeasureHB,HRB(orHRC)andHVhardnessvalue,onlyoneofthethreehardnessvaluescanbemeasured.Thecompany'snewlydevelopedportableappearanceRockwellhardnesstesterandpipeRockwellhardnesstestercanstopfastandaccuratehardnesstesting,makingitdifficulttosolveproblemsthatweredifficulttohandleinthepastinChina.

Application of pipe welding machine

(Summary description)Consumptionoilcasingcanbeweldedintwoways:hot-rolledseamlesssteelpipeandweldedpipeunit.Becausethereisaweldingseamintheoilcasingusedforwelding,itisthekeyofconsumptiontodealwiththematchingofthestrengthandtoughnessofthebasemetalandtheweldingseam,thegrayspotoftheweldingseam,andthecorrosionoftheweldingseam. TheperformancecharacteristicsofthepipeweldingmachinearethatthemoldisprocessedbyaCNCsystem,whichiswear-resistantandhighlyaccurate.Thesquaretubehasaflatmoldingsurfaceandasharpangle.Thepolishedsurfacecanreachthemirrorsurface,andtheroundnessoftheshapeandpositiontoleranceiswithin5mm;thediagonalofthesquaretubedoesnotexceed±0.5mm. Theconsumptionoilcasingoftheweldedpipeunitisaffectedbythetoughnessofthebasemetal,thechemicalcompositionofthebasemetalandtheweldingprocess.WhentheC,S,P,andCrelementsintherawstriparereduced,thetoughnessoftheweldcanbeimproved;whenthebrightlinewidth,streamlineangleandthecontentofnon-metallicinclusionsintheweldingprocessarecontrolled,Itcansignificantlyimprovethetoughnessoftheweld.Inaddition,thecontrolledcoolingoftheweldedpipeafterreducingthethermaltensioncanimprovethetoughnessoftheweldseamoftheweldingoilcasingandotherareasofthepipebody. Weldedpipecanusethreekindsofhardnesstestmethods:cloth,LuoandWei,tomeasureHB,HRB(orHRC)andHVhardnessvalue,onlyoneofthethreehardnessvaluescanbemeasured.Thecompany'snewlydevelopedportableappearanceRockwellhardnesstesterandpipeRockwellhardnesstestercanstopfastandaccuratehardnesstesting,makingitdifficulttosolveproblemsthatweredifficulttohandleinthepastinChina.

Categories:company news
Author:
Origin:
Time of issue:2020-03-13 14:37

Information

Consumption oil casing can be welded in two ways: hot-rolled seamless steel pipe and welded pipe unit. Because there is a welding seam in the oil casing used for welding, it is the key of consumption to deal with the matching of the strength and toughness of the base metal and the welding seam, the gray spot of the welding seam, and the corrosion of the welding seam.

The performance characteristics of the pipe welding machine are that the mold is processed by a CNC system, which is wear-resistant and highly accurate. The square tube has a flat molding surface and a sharp angle. The polished surface can reach the mirror surface, and the roundness of the shape and position tolerance is within 5mm; the diagonal of the square tube does not exceed ± 0.5mm.

The consumption oil casing of the welded pipe unit is affected by the toughness of the base metal, the chemical composition of the base metal and the welding process. When the C, S, P, and Cr elements in the raw strip are reduced, the toughness of the weld can be improved; when the bright line width, streamline angle and the content of non-metallic inclusions in the welding process are controlled, It can significantly improve the toughness of the weld. In addition, the controlled cooling of the welded pipe after reducing the thermal tension can improve the toughness of the weld seam of the welding oil casing and other areas of the pipe body.

Welded pipe can use three kinds of hardness test methods: cloth, Luo and Wei, to measure HB, HRB (or HRC) and HV hardness value, only one of the three hardness values can be measured. The company's newly developed portable appearance Rockwell hardness tester and pipe Rockwell hardness tester can stop fast and accurate hardness testing, making it difficult to solve problems that were difficult to handle in the past in China.

Previous: The role of leveler in welded pipe unit

Next: How does the high-frequency welded pipe unit prevent damage?

Previous: The role of leveler in welded pipe unit

Next: How does the high-frequency welded pipe unit prevent damage?