1. Indaba
1.1.Ukukhethwa kwezinto ezisetshenziswayo kuzohambisana nezindinganiso ezifanele zezwe elikhiqizayo amapayipi kanye namazinga wempahla eluhlaza adingwa umnikazi.
1.2.Ngemva kokungena efekthri, abahloli baqale baqinisekise isitifiketi semathiriyeli soqobo esikhishwe umenzi kanye nombiko wokuhlolwa kwempahla ebalulekile yokungenisa ezweni.Hlola ukuthi amamaki ezintweni zokwakha aphelele futhi ayahambisana nesitifiketi sekhwalithi.
1.3.Phinda uhlole izinto ezisanda kuthengwa, uhlole ngokuqinile ukwakheka kwamakhemikhali, ubude, ukujiya kodonga, ububanzi bangaphandle (ububanzi bangaphakathi) kanye nekhwalithi yangaphezulu yezinto ezibonakalayo ngokwezidingo ezijwayelekile, bese urekhoda inombolo yeqoqo kanye nenombolo yepayipi yezinto zokwakha.Izinto ezingafanelekile azivunyelwe ukuthi zigcinwe futhi zicutshungulwe.Indawo yangaphakathi nengaphandle yepayipi yensimbi ngeke ibe nemifantu, ukugoqa, ukugoqa, uqweqwe, ama-delaminations nemigqa yezinwele.Lezi ziphambeko zizosuswa ngokuphelele.Ukujula kokususwa akumele kudlule ukuchezuka okunegethivu kogqinsi oluvamile lodonga, futhi ukujiya kwangempela kodonga endaweni yokuhlanza akumele kube ngaphansi kobukhulu obuncane obuvunyelwe bodonga.Endaweni yangaphakathi nangaphandle yepayipi yensimbi, usayizi wesici esivumelekile akumele udlule izinhlinzeko ezifanele ezindinganisweni ezihambisanayo, ngaphandle kwalokho uzonqatshwa.Isikali se-oxide endaweni yangaphakathi nangaphandle yamapayipi ensimbi kufanele sikhishwe futhi siphathwe ngokwelashwa kokuqeda ukugqwala.Ukwelashwa kwe-anti-corrosion ngeke kuthinte ukuhlolwa okubonakalayo futhi kungasuswa.
1.4.Izakhiwo zemishini
Izakhiwo zemishini zizohlangabezana nezindinganiso ngokulandelana kwazo, futhi ukwakheka kwamakhemikhali, ubukhulu bejometri, ukubukeka kanye nezakhiwo zemishini kuzobhekwa kabusha futhi kwamukelwe.
1.5 Ukusebenza kwenqubo
1.5.1.Amapayipi ensimbi azoba ngaphansi kokuhlolwa okungabhubhisi okungu-100% ngakunye ngokusho kwe-SEP1915, futhi kuzonikezwa amasampula ajwayelekile okuhlolwa kwe-ultrasonic.Ukujula kwesici kwamasampula ajwayelekile kuzoba ngu-5% wokuqina kodonga, futhi umkhawulo akumele udlule u-1.5mm.
1.5.2.Ipayipi lensimbi kufanele libe ngaphansi kokuhlolwa kokucaba
1.5.3.Usayizi wangempela wokusanhlamvu
Usayizi wangempela wokusanhlamvu wepayipi eliqediwe akufanele libe mkhulu kunebanga lesi-4, futhi umehluko wezinga wepayipi yensimbi yenombolo yokushisa efanayo akufanele udlule ibanga lesi-2. Ubukhulu bokusanhlamvu buzohlolwa ngokuvumelana ne-ASTM E112.
2. Ukusika nokuvala
2.1.Ngaphambi kokuvalwa kokufakwa kwepayipi le-alloy, ukubala okunembile kwempahla kufanele kwenziwe kuqala.Ngokwemiphumela yokubala yamandla yokufakwa kwamapayipi, hlaziya futhi ucabangele umthelela wezici eziningi ezifana nokuncipha nokuguqulwa kokufakwa kwamapayipi ohlelweni lokukhiqiza ezingxenyeni ezibalulekile zokufakwa kwamapayipi (njenge-arc yangaphandle yendololwane, ukushuba kwe-tee ihlombe, njll.), bese ukhetha izinto ezisetshenziswayo ezinemvume eyanele, Futhi ucabangele ukuthi ingabe i-coefficient yokuthuthukisa ingcindezi ngemva kokwakheka kwepayipi iyahambisana yini ne-design coefficient yengcindezi yepayipi nendawo yokugeleza yepayipi.Isinxephezelo se-radial material kanye nesinxephezelo sempahla yehlombe phakathi nenqubo yokucindezela kuzobalwa ku-hot tee ecindezelwe.
2.2.Ukuze uthole izinto zepayipi ye-alloy, umshini wokusika we-gantry band usetshenziselwa ukusika okubandayo.Kwezinye izinto zokwakha, ukusika ilangabi kuvame ukugwenywa, kodwa ukusika i-band saw kusetshenziselwa ukuvimbela amaphutha njengokuqiniswa kongqimba noma ukuqhekeka okubangelwa ukusebenza okungafanele.
2.3.Ngokwezidingo zokuklama, lapho usika futhi uvala, ububanzi bangaphandle, ukushuba kodonga, impahla, inombolo yepayipi, inombolo yeqoqo lesithando somlilo kanye nenombolo yokugeleza engenalutho yepayipi yezinto zokusetshenziswa iyomakwa futhi itshalwe kabusha, futhi ukuhlonza kuzoba ngendlela ukucindezeleka okuphansi kwensimbi seal kanye nokufutha ngopende.Futhi urekhode okuqukethwe kokusebenza ekhadini lokugeleza lenqubo yokukhiqiza.
2.4.Ngemva kokuvala ucezu lokuqala, opharetha uzozihlola futhi abike kumhloli okhethekile wesikhungo sokuhlola ukuze ahlolwe okukhethekile.Ngemuva kokuphumelela ukuhlolwa, ukuvala ezinye izingcezu kuzokwenziwa, futhi ucezu ngalunye luzohlolwa futhi lurekhodwe.
3. Ukucindezela okushisayo (ukuphusha) ukubumba
3.1.Inqubo yokucindezela okushisayo yokufakwa kwamapayipi (ikakhulukazi i-TEE) iyinqubo ebalulekile, futhi okungenalutho kungashiswa ngesithando sokushisa samafutha.Ngaphambi kokushisisa okungenalutho, qala uhlanze i-engeli ye-chip, uwoyela, ukugqwala, ithusi, i-aluminium nezinye izinsimbi ezincibilika kancane endaweni yeshubhu elingenalutho ngamathuluzi afana nesando nesondo lokugaya.Hlola ukuthi umazisi ongenalutho uyahlangabezana yini nezidingo zedizayini.
3.2.Hlanza ama-sundries ehholo lesithando sokushisa, futhi uhlole ukuthi isekethe yesithando sokushisa, isifunda samafutha, i-trolley kanye nesistimu yokulinganisa izinga lokushisa kujwayelekile nokuthi uwoyela wanele yini.
3.3.Faka isikhala esithandweni sokushisisa ukuze sifudumale.Sebenzisa izitini eziphikisayo ukuze uhlukanise i-workpiece endaweni yesithando somlilo esithandweni.Lawula ngokuqinile isivinini sokushisa esingu-150 ℃ / ihora ngokusho kwezinto ezahlukene.Lapho ishisa kufika ku-30-50 ℃ ngaphezu kwe-AC3, ukufakwa kufanele kube ngaphezu kwehora elingu-1.Enqubweni yokushisa nokugcina ukushisa, isibonisi sedijithali noma ithemometha ye-infrared izosetshenziswa ukuqapha nokulungisa noma nini.
3.4.Lapho okungenalutho kushisiswe ekushiseni okucacisiwe, kuyakhishwa esithandweni ukuze kucindezelwe.Ukucindezela kuqediwe ngomshini wokucindezela amathani angu-2500 kanye nedayisi yokufaka amapayipi.Ngesikhathi sokucindezela, izinga lokushisa lomshini wokusebenza ngesikhathi sokucindezela likalwa nge-thermometer ye-infrared, futhi izinga lokushisa alikho ngaphansi kuka-850 ℃.Lapho i-workpiece ingakwazi ukuhlangabezana nezidingo ngesikhathi esisodwa futhi izinga lokushisa liphansi kakhulu, i-workpiece ibuyiselwa esithandweni sokushisa kabusha nokugcinwa kokushisa ngaphambi kokucindezela.
3.5.Ukwakhiwa okushisayo komkhiqizo kucabangela ngokugcwele umthetho wokugeleza kwensimbi ye-thermoplastic deformation ekwenzeni inqubo yomkhiqizo ophelile.Isikhunta esakhiwe sizama ukunciphisa ukumelana ne-deformation okubangelwa ukucubungula okushisayo kwe-workpiece, futhi isikhunta samathayi esicindezelwe sisesimweni esihle.Izibunjwa zamasondo ziqinisekiswa njalo ngokwezidingo zohlelo lokuqinisekisa ikhwalithi ye-ISO9000, ukuze kulawulwe inani le-thermoplastic deformation yento, ukuze ubukhulu bangempela bodonga lwanoma yiliphi iphuzu ekufakweni kwepayipi bukhulu kunobukhulu obuncane bodonga. ipayipi eliqondile elixhunyiwe.
3.6.Okwendololwaneni enobubanzi obukhulu, kwamukelwa ukubunjwa kwe-push yokushisa okuphakathi nendawo, futhi umshini wokusunduza we-tw1600 omkhulu owengeziwe ukhethwa njengomshini wokuphusha.Enqubweni yokuphusha, izinga lokushisa lokushisa kwe-workpiece lilungiswa ngokulungisa amandla okunikezwa kwamandla okuvama okuphakathi.Ngokuvamile, ukusunduza kulawulwa ku-950-1020 ℃, futhi isivinini sokusunduza silawulwa ku-30-100 mm / min.
4. Ukwelashwa kokushisa
4.1.Ukufakwa kwamapayipi aphelile, inkampani yethu yenza ukwelashwa kokushisa ngokuhambisana ngokuqinile nesistimu yokwelapha ukushisa echazwe kumazinga ahambisanayo.Ngokuvamile, ukwelashwa kokushisa kokufakwa kwamapayipi amancane kungenziwa esithandweni sokumelana, futhi ukwelashwa kokushisa kokufakwa kwamapayipi amakhulu noma ama-elbows kungenziwa esithandweni sokushisa uwoyela kawoyela.
4.2.Ihholo lesithando somlilo wesithando somlilo kufanele lihlanzeke futhi lingabi nawoyela, umlotha, ukugqwala nezinye izinsimbi ezihlukile ezintweni zokwelapha.
4.3.Ukwelashwa kokushisa kufanele kwenziwe ngokuhambisana ngokuqinile nejika lokwelapha ukushisa elidingwa "ikhadi lenqubo yokushisa ukushisa", futhi izinga lokushisa lokukhuphuka nokuwa kwezingxenye zepayipi lensimbi ye-alloy kufanele lilawulwe libe ngaphansi kwama-200 ℃ / ihora.
4.4.Irekhoda ezenzakalelayo irekhoda ukunyuka nokwehla kwezinga lokushisa nganoma yisiphi isikhathi, futhi ilungisa ngokuzenzakalelayo izinga lokushisa kanye nesikhathi sokubamba esithandweni ngokuya ngemingcele enqunywe kusengaphambili.Ngesikhathi sokushisa kokufakwa kwamapayipi, ilangabi lizovinjelwa ngodonga olubamba umlilo ukuvimbela ilangabi ukuthi lingafafazi ngokuqondile ebusweni bokufakwa kwamapayipi, ukuze kuqinisekiswe ukuthi ukufakwa kwamapayipi ngeke kushiswe futhi kushiswe ngesikhathi sokwelashwa kokushisa.
4.5.Ngemuva kokwelashwa kokushisa, ukuhlolwa kwe-metallographic kuzokwenziwa ukufakwa kwepayipi le-alloy ngayinye ngayinye.Usayizi wangempela wokusanhlamvu akufanele ube mkhulu kunebanga lesi-4, futhi umehluko webanga lokufakwa kwamapayipi enani lokushisa elifanayo akufanele udlule ibanga lesi-2.
4.6.Yenza ukuhlolwa kokuqina ezilinganisweni zamapayipi aphethwe ukushisa ukuze uqinisekise ukuthi inani lokuqina lanoma iyiphi ingxenye yezixhumi zamapayipi alidluli ububanzi obudingekayo ngokwezinga.
4.7.Ngemva kokwelashwa ngokushisa kokufakwa kwamapayipi, isikali se-oxide endaweni yangaphakathi nengaphandle kufanele sisuswe ngokuqhunyiswa kwesihlabathi kuze kube ukucwebezela kwensimbi yezinto ezibonakalayo.Ukuklwebheka, imigodi nokunye ukukhubazeka endaweni ebonakalayo kuzopholishwa kushelelezi ngamathuluzi afana nesondo lokugaya.Ugqinsi lwasendaweni lokufakwa kwepayipi eliphucuziwe akumele lube ngaphansi kobukhulu obuncane bodonga oludingwa idizayini.
4.8.Gcwalisa irekhodi lokwelapha ukushisa ngokwenombolo yokufaka ipayipi kanye nokuhlonza, bese ubhala kabusha ukuhlonza okungaphelele endaweni yokufaka ipayipi kanye nekhadi lokugeleza.
5. Groove processing
5.1.Ukucubungula kwe-groove kokufakwa kwamapayipi kwenziwa ngokusika ngomshini.Inkampani yethu inamasethi angaphezu kuka-20 emishini yokwenza imishini efana nezingilazi ezihlukahlukene namakhanda kagesi, engacubungula umsele omise okwe-V noma omise okwe-U, umsele ongaphakathi kanye nomsele ongaphandle wokufakwa kwamapayipi odongeni aminyene ahlukahlukene ngokwezidingo zekhasimende lethu. .Inkampani ingakwazi ukucubungula ngokulandela umdwebo we-groove kanye nezidingo zobuchwepheshe ezinikezwe ikhasimende lethu ukuze kuqinisekiswe ukuthi ukufakwa kwamapayipi kulula ukusebenza futhi kushiselwe inqubo yokushisela.
5.2.Ngemva kokuqedwa kokufakwa kwepayipi, umhloli uzohlola futhi amukele ubukhulu bepayipi lokulinganisa ngokwezidingo zomdwebo, futhi asebenze kabusha imikhiqizo ngobukhulu obungafanelekile bejometri kuze kube yilapho imikhiqizo ihlangabezana nobukhulu bokuklama.
6. Isivivinyo
6.1.Ukufakwa kwamapayipi kuzohlolwa ngokwezidingo ezijwayelekile ngaphambi kokuphuma efekthri.Ngokusho kwe-ASME B31.1.Zonke izivivinyo kudingeka ukuthi zigcwaliswe abahloli abangochwepheshe abaneziqu ezihambisanayo eziqashelwa Ihhovisi Lombuso Lokuqondisa lobuchwepheshe.
6.2.Ukuhlolwa kwezinhlayiya zikaMagnetic (MT) kuzokwenziwa endaweni engaphandle ye-tee, indololwane kanye nesinciphisi, ukukala ukushuba kwe-ultrasonic kanye nokutholwa kwamaphutha kuzokwenziwa ohlangothini lwe-arc olungaphandle lwendololwane, ihlombe le-tee kanye nengxenye yokunciphisa, kanye nokutholwa kwamaphutha e-radiographic. noma ukutholwa kwamaphutha kwe-ultrasonic kuzokwenziwa ekushiseleni kokufakwa kwamapayipi ashiselwe.Isikibha esifojiwe noma indololwane izoba ngaphansi kokuhlolwa kwe-ultrasonic endaweni engenalutho ngaphambi komshini.
6.3.Ukutholwa kokukhubazeka kwezinhlayiyana zikazibuthe kuzokwenziwa ngaphakathi kuka-100mm wemisele yazo zonke izixhumi zamapayipi ukuze kuqinisekiswe ukuthi akukho ukuqhekeka nokunye ukukhubazeka okubangelwa ukusikwa.
6.4.Ikhwalithi yobuso: indawo yangaphakathi nengaphandle yokufakwa kwamapayipi akufanele kube nemifantu, imigodi eshwabene, umlotha, ukunamathela kwesihlabathi, ukugoqa, ukushisela okungekho, isikhumba esiphindwe kabili nokunye ukukhubazeka.Indawo kufanele ishelele ngaphandle kwemihuzuko ebukhali.Ukujula kokucindezeleka akufanele kudlule u-1.5mm.Ubukhulu bobukhulu bokudangala akufanele bube ngaphezu kuka-5% we-circumference yepayipi futhi bungabi ngaphezu kwama-40mm.Indawo yokushisela akumele ibe nemifantu, izimbotshana, ama-craters nama-splashes, futhi akumele kube nokusika phansi.I-engeli yangaphakathi ye-tee izoba inguquko ebushelelezi.Konke ukufakwa kwamapayipi kufanele kuhlolwe ukubukeka kwangaphandle okungu-100%.Imifantu, amakhona acijile, imigodi nokunye ukonakala endaweni yokufakwa kwamapayipi kuzopholishwa ngegrinder, futhi ukutholwa kokukhubazeka kwezinhlayiyana kazibuthe kuzokwenziwa endaweni yokugaya kuze kube yilapho ukonakala kuqedwa.Ubukhulu bokufakwa kwamapayipi ngemva kokupholishwa akumele kube ngaphansi kobukhulu obuncane bomklamo.
6.5.Ukuhlolwa okulandelayo kuzophinde kwenziwe ukuze kufakwe amapayipi anezidingo ezikhethekile zamakhasimende:
6.5.1.Ukuhlolwa kwe-Hydrostatic
Konke ukufakwa kwamapayipi kungaba ngaphansi kokuhlolwa kwe-hydrostatic ngesistimu (ingcindezi yokuhlola i-hydrostatic izikhathi eziyi-1.5 zengcindezi yokuklama, futhi isikhathi akufanele sibe ngaphansi kwemizuzu eyi-10).Ngaphansi kombandela wokuthi amadokhumenti esitifiketi sekhwalithi aqediwe, ukufakwa kwepayipi lemboni yangaphambili kungase kungabi ngaphansi kokuhlolwa kwe-hydrostatic.
6.5.2.Usayizi wangempela wokusanhlamvu
Usayizi wangempela wokusanhlamvu wokufakwa kwamapayipi oqediwe akumele ube mkhulu kunebanga lesi-4, futhi umehluko webanga wokufakwa kwamapayipi enenombolo efanayo yokushisa akufanele udlule ibanga lesi-2. Ukuhlolwa kosayizi wokusanhlamvu kuzokwenziwa ngendlela eshiwo ku-Yb / t5148-93 (noma i-ASTM E112), futhi izikhathi zokuhlola zizoba kanye ngenombolo ngayinye yokushisa + ibheshi ngayinye yokwelapha ukushisa.
6.5.3.I-Microstructure:
Umkhiqizi uzohlola i-microstructure futhi anikeze izithombe ze-microstructure ngokuhambisana nezinhlinzeko ezifanele ze-GB / t13298-91 (noma izindinganiso zamazwe ngamazwe ezihambisanayo), futhi izikhathi zokuhlola zizoba ngenombolo ngayinye yokushisa + usayizi (ububanzi × ukujiya kweWall) + inqwaba yokwelashwa kokushisa. kanye.
7. Ukupakisha kanye nokuhlonza
Ngemuva kokuthi ukufakwa kwamapayipi kucutshungulwe, udonga lwangaphandle luzofakwa ngopende lwe-antirust (okungenani ungqimba olulodwa lwe-primer kanye nongqimba olulodwa lopende wokuqeda).Upende wokugcina wengxenye yensimbi ye-carbon uzoba mpunga bese upende wokugcina wengxenye yealloy ube bomvu.Upende kufanele ube umfaniswano ngaphandle kwamabhamuza, imibimbi kanye nokuxebuka.I-groove kufanele iphathwe nge-ejenti ekhethekile ye-antirust.
Ukufakwa kwamapayipi omgunyathi amancane noma okufakwayo okubalulekile kwamapayipi kupakishwa emakesini okhuni, futhi izixhumi ezinkulu zamapayipi ngokuvamile zinqunu.Imibhobho yazo zonke izinsimbi zamapayipi kufanele ivikelwe ngokuqinile ngamasongo enjoloba (epulasitiki) ukuze kuvikelwe izinsimbi zamapayipi emonakalweni.Qinisekisa ukuthi imikhiqizo yokugcina ethunyelwe ayinazo iziphambeko ezinjengokuqhekeka, ukuklwebheka, izimpawu zokudonsa, isikhumba esiphindwe kabili, ukunamathela kwesihlabathi, i-interlayer, ukufakwa kwe-slag nokunye.
Ingcindezi, izinga lokushisa, impahla, ububanzi kanye nokunye ukucaciswa kokufakwa kwamapayipi kokufakwa kwamapayipi kufanele kumakwe engxenyeni esobala yemikhiqizo yokufaka amapayipi.Insimbi seal ithatha ukucindezeleka okuphansi kwensimbi seal.
8. Letha izimpahla
Imodi yokuthutha efanelekayo izokhethwa ukulethwa kokufakwa kwamapayipi ngokuvumelana nezidingo zesimo sangempela.Ngokuvamile, ukufakwa kwamapayipi asekhaya kuhanjiswa ngemoto.Enqubweni yokuthuthwa kwezimoto, kuyadingeka ukuthi ubophe ngokuqinile ukufakwa kwepayipi nomzimba wemoto nge-tape yokupakisha ethambile yamandla aphezulu.Ngesikhathi sokushayela imoto, akuvunyelwe ukungqubuzana nokugubha nezinye izinsimbi zamapayipi, futhi uthathe izinyathelo zokuvikela imvula kanye nomswakama.
I-HEBEI CANGRUN PIPINE EQUIPMENT CO., LTD ingumkhiqizi ochwepheshe wokufakwa kwamapayipi, ama-flange namavalvu.Inkampani yethu inethimba lenkonzo yobunjiniyela nezobuchwepheshe elinolwazi olucebile lobunjiniyela, ubuchwepheshe obusezingeni eliphezulu kakhulu, ukuqwashisa ngesevisi eqinile kanye nokusabela okusheshayo nokulula kubasebenzisi emhlabeni wonke.Inkampani yethu ithembisa ukuklama, ukuhlela ukuthenga, ukukhiqiza, ukuhlola nokuhlola, ukupakisha, ezokuthutha kanye nezinsizakalo ngokuhambisana nezidingo ze-ISO9001 yokuphathwa kwekhwalithi kanye nohlelo lokuqinisekisa ikhwalithi.Kunesisho sakudala eShayina: Kuyinjabulo enkulu ukuba nabangane abavela kude.
Yamukela abangani bethu ukuthi bavakashele ifekthri.
Isikhathi sokuthumela: May-06-2022