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Eng ang crack nge stainless steel welded pipe te hian welding an tih hian an nei thin?

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Stainless steel welded pipe hian welding process chhung hian harsatna tam tak a nei thei a, chu chu undercuts, pores, unfused, cracks, leh a dangte a ni. Tichuan, stainless steel welded pipe weld lai hian eng ang crack nge i hriat?

1. Hot crack .

Welding process chhunga welding crack leh heat affected zone a welding crack siam chu welding process chhunga solidus line bula temperature sang ber thlenga a sawina a ni. Preventive measures: Stainless steel welded pipe leh welding material-a sulfur leh phosphorus ang chi bawlhhlawh hlauhawm tak takte chu khauh takin control la, hot cracks sensitivity tihtlem Weld metal chemical composition siam that a, weld microstructure siam that, grains tihthianghlim leh plasticity siam that. segregation degree tihtlem emaw, thehdarh emaw; Weld-a bawlhhlawh awm zat tihtlem nan leh segregation degree tihsan nan alkaline welding material hmang ang che.

2. Cold crack .

Welded joint chu temperature hniam zawka tihlum a nih chuan crack siam chhuah a kawk a, chu chu cold crack an ti a ni. Preventive measures: Hydrogen type welding materials hmang la, hman hmain thupek angin thupekte chu khauh takin zawm rawh; Welding hmain weldment-a oil leh moisture chu la chhuak la, weld-a hydrogen awm zat chu tihtlem la; Weld-a hardening tendency tihziaawmna turin welding process parameter leh heat input dik tak thlan chu welding hnuah hydrogen elimination treatment hmangin welded joint atanga hydrogen a chhuah theih nan

3. Reheat crack .

A sawina chu stainless steel welded pipe chu temperature range engemaw zat (stress-relieving heat treatment emaw heating process dang emaw) a tihlum hnua crack siam a ni a, chu chu reheat crack an ti a ni.

Preventive measures: Design requirements zawm tur premise hnuaiah, low-strength welding materials thlang la, chutiang chuan weld strength chu base metal aiin a hniam zawk ang a, weld-ah chuan stress chu a loose a, heat-affected zone-a crack awm loh nan welding residual stress leh stress concentration tih tlem; Welded pipe-a welding heat input control la, preheating leh heat treatment temperature chu a remchan dan angin thlang la, a theih ang angin sensitive area chu pumpelh rawh.

Stainless steel welded pipe hian a siam chhuah chhung hian a chhehvel boruak a ngaihven tur a ni a, a hun taka siamthat leh record siam tur a ni. stainless steel welded pipe siamtute’n an lantir condition hrang hrangte nena inzawm chuan, hangao tech (Seko Machinery) tih a ni a.s High-speed stainless steel welded pipe siamna line tube siamna machine hian Seko-a exclusive electromagnetic control system hmangin deviated arc control a hmang a, hei hian welding hman tangkai leh quality a ti tha hle. Chutih rual chuan eddy current flaw detector chu a inzawm khawmin welded pipe chhung lam bang chu engtik lai pawhin enfiah a ni. Intelligent PLC system hian welded pipe siam chhuah data chu real time-in a enfiah a, a record a, chutiang chuan yield chu nasa takin a ti ṭha a, chu chuan a senso a tihtlem phah a ni.                                        

A kaihhnawih thil siam chhuah .

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Traditional electric furnace hmanrua a lian a,a khuhna hmun zau tak a khuh a, energy hman tam leh gas hman tam tak a nei a, chuvangin realize bright solution process atan a harsa hle. Kum tam tak chhunga thawhrimna leh thil thar siam chhuah a nih hnuah, tuna advanced induction heating technology hman mek leh DSP power supply hman dan. T2C chhunga temperature control a nih theih nan, induction heating temperature control dik lo taka technical problem chinfel a nih theih nan heating temperature precision control a ni. Heated steel pipe hi 'heat conduction' hmangin a lum a, special closed cooling tunnel-ah a lum a, chu chuan gas hman a tihtlem nasa hle a, boruak tichhe lo zawk a ni.
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Titanium tube mill siam chhuahna line .
Titanium tube hmanna hmun tam tak chu hangao-a titanium welded tube siamna line hmangin chhui rawh. Titanium tubes hian aerospace, medical devices, chemical processing, leh a dangteah critical utility a hmu a, hei hi an corrosion resistance danglam bik leh strength-to-weight ratio vang a ni. Domestic market-a thil awmze nei lo tak a nih angin, HAGAO hian Titanium welded tube siamna line-a thil siamtu nghet leh rintlak tak a nih avangin a chhuang hle a, he specialized field-a precision leh consistent performance a tichiang a ni.
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Hangao-a petroleum leh chemical tube siamna line hmangin precision ram chhungah dive rawh. Petroleum leh Chemical Industries-te thil phut khauh tak takte tana siam, kan production line hian heng sector-a thil pawimawh tak tak phurh leh process-na atana mamawh tehfung khauh tak takte zawmtu tube-ah a hlawhtling hle. Petroleum leh chemical hmanna atana pawimawh tak, integrity leh efficiency vawng nungtu solution rintlak tak takte chu HAGAO hi ring rawh.
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