Cold Yakagadzirwa Welded Structural Yemoto Pipe Line

Mutsetse wepombi yemoto wakaita sewelded wakagadzirwa nechando. Mufananidzo wakaratidzwa

Tsananguro pfupi:

Mapaipi akasungirirwa netambo dzemumativi (spiral seam welded pombi) anoita basa rakakosha mumaindasitiri akasiyana-siyana, kunyanya muzvivakwa zvakasungirirwa zvakaumbwa nechando uye tambo dzemapaipi emoto. Mapaipi aya anogadzirwa nekukombamisa simbi nguva dzose kuita zvidimbu zvesimbi uye wobva wabatanidza tambo dzesimbi kuti dzigadzire mapaipi marefu anotenderera. Anoshandiswa zvakanyanya kutakura mvura, magasi nezvinhu zvakasimba, pamwe chete nekushandiswa kwezvivakwa nemaindasitiri.

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Ruzivo rweChigadzirwa

Matagi eChigadzirwa

In chivakwa chakasungirirwa chakaumbwa nechandomashandisirwo, mapaipi akasungirirwa nemusono akakosha pakuvaka zvivakwa zvakasimba uye zvinovimbika. Mapaipi aya anowanzogadzirwa nesimbi yepamusoro uye anogona kutsungirira mitoro inorema, zvichiita kuti akwanise kushandiswa pamabhiriji, zvivakwa nezvimwe zvirongwa zvekuvaka.

giredhi resimbi	simba shoma regoho		Simba rekusimba		Kureba kushoma	Simba shoma remagetsi
	Mpa				%	J
	Ukobvu hwakatarwa		Ukobvu hwakatarwa		Ukobvu hwakatarwa	patembiricha yekuyedzwa kwe
	mm		mm		mm
	16	＞16≤40	3	≥3≤40	≤40	-20℃	0℃	20℃
S235JRH	235	225	360-510	360-510	24	-	-	27
S275J0H	275	265	430-580	410-560	20	-	27	-
S275J2H						27	-	-
S355J0H	365	345	510-680	470-630	20	-	27	-
S355J2H						27	-	-
S355K2H						40	-	-

Kuumbwa kweMakemikari

Giredhi resimbi		Rudzi rwekubvisa oxidation a	% nehuremu, huwandu hwepamusoro
Zita resimbi	Nhamba yesimbi	C	C	Si	Mn	P	S	Nb
S235JRH	1.0039	FF	0,17	—	1,40	0,040	0,040	0.009
S275J0H	1.0149	FF	0,20	—	1,50	0,035	0,035	0,009
S275J2H	1.0138	FF	0,20	—	1,50	0,030	0,030	—
S355J0H	1.0547	FF	0,22	0,55	1,60	0,035	0,035	0,009
S355J2H	1.0576	FF	0,22	0,55	1,60	0,030	0,030	—
S355K2H	1.0512	FF	0,22	0,55	1,60	0,030	0,030	—
a. Nzira yekubvisa oxidation inotsanangurwa seinotevera:
FF: Simbi yakafa zvizere ine zvinhu zvinosunga nitrogen muhuwandu hwakakwana kuti isunge nitrogen iripo (semuenzaniso 0,020% yeAl yose kana 0,015% yeAl inonyungudika).
b. Kukosha kwakanyanya kwenitrogen hakushandi kana makemikari ari muchikamu ichi achiratidza huwandu hweAl hushoma hwe0,020% nechiyero cheAl/N che2:1, kana kana paine zvimwe zvinhu zveN-binding zvakakwana. Zvinhu zveN-binding zvinofanira kunyorwa muGwaro reKuongorora.

Pamusoro pezvo, mukudzivirira motomapaipi, kushandiswa kwemapombi akasungirirwa nemusono wespiral kwakakosha kuti ive nechokwadi chekuti sisitimu yakachengeteka uye yakavimbika. Mapombi aya akagadzirwa zvakanyanya kuti agone kutsungirira tembiricha yakakwira uye kumanikidzwa uye akakodzera kushandiswa mumasisitimu ekudzivirira moto. Kuvakwa kwepombi yakasungirirwa nemusono wespiral kunoita kuti isadonhe uye irambe yakasimba kunyangwe mumamiriro ezvinhu akaipisisa, zvichiita kuti ive chikamu chakakosha chemasisitimu ekudzivirira moto uye ekudzora moto.

Chimwe chezvakanakira zvikuru zvemusono welded pombiimhando yekushandiswa kwayo kwakasiyana-siyana uye kugona kwayo kuchinjika kune zvakasiyana-siyana zvemashandisirwo. Mapaipi aya anogona kugadzirwa muhukuru hwakasiyana-siyana uye ukobvu kuti asvike pazvinodiwa zvepurojekiti. Pamusoro pezvo, anogona kuputirwa nezvinhu zvinodzivirira kuti awedzere kuramba ngura uye kuwedzera hupenyu hwawo hwekushanda, zvichiita kuti akwanise kushandiswa munzvimbo dzakasiyana-siyana nemamiriro ezvinhu.

Mapaipi akasungirirwa netambo dzakapinza ane zvakanakira zvakajeka kana zvasvika pakuiswa nekugadzirisa. Akareruka uye anochinjika, zvichiita kuti zvive nyore kutakura nekubata, zvichideredza nguva yekuisa uye mari yevashandi. Pamusoro pezvo, kureba kwawo kwenguva refu, kunoenderera mberi kunoderedza kudiwa kwekubatanidza kwakawedzerwa, kuderedza njodzi yekudonha kwemvura uye kuve nechokwadi chekuti pave nehurongwa hwemapaipi hunoshanda uye hwakavimbika.

Mukupedzisa, pombi yakasungirirwa yemusono inotenderera chinhu chakakosha mumaindasitiri akasiyana-siyana, kunyanya muzvivakwa zvakasungirirwa zvakagadzirwa zvinotonhora uyetambo yepombi yemotomashandisirwo ayo. Kuvakwa kwayo kwenguva refu, kushanda kwayo kwepamusoro uye kugona kwayo kuchinja zvinoita kuti ive sarudzo yekutanga kune mainjiniya, makondirakiti nevatariri vemapurojekiti. Ingave kuvaka zvivakwa zvakasimba kana kugadzira masisitimu ekudzivirira moto akachengeteka uye akavimbika, mapaipi akasungirirwa netambo dzakatenderedzwa imhinduro inokosha kune zvinodiwa nezvivakwa zvemazuva ano nemaindasitiri.