Pipe yesimbi yeBlack Carbon Steel

Mufananidzo wePombi yeSimbi yeKabhoni Nhema

Tsananguro pfupi:

Pipe yesimbi nhema, inonziwo pipe yesimbi yekabhoni, pipe yesimbi yakapfava, imhando yepipe inogadzirwa nesimbi isina kabhoni yakawanda.

Nhemapombi inoshandiswa zvakanyanya mumabasa akasiyana-siyana, kusanganisira pombi dzemvura, kugoverwa kwegasi, uye rutsigiro rwechivakwa.

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Ruzivo rweChigadzirwa

Matagi eChigadzirwa

Pombi yesimbi nhema, inonziwopombi yesimbi yekabhoni, pombi yesimbi yakapfava, imhando yemapaipi akagadzirwa nesimbi isina kabhoni yakawanda. Chitarisiko chayo chakasviba chinoshamisa chinobva pachikero che oxide nhema chinoumbwa pamusoro payo panguva yekugadzira.
Kazhinji, mapaipi esimbi matema anenge ari mapaipi akatenderera asina kugadziriswa, anonyanya kugadziriswa kuti apedziswe pamusoro. Nekuda kwekushaikwa kwependi yekudzivirira, anowanzo ora, zvichiita kuti akwanise kushandiswa munzvimbo dzakaoma kana kwaanogona kupendwa kana kudzivirirwa neimwe nzira. Anozivikanwa nekusimba kwawo uye kugara kwenguva refu, mapaipi esimbi matema isarudzo yakakurumbira mukushandiswa kwedzimba nemaindasitiri. Anouya muhukuru hwakasiyana-siyana uye ukobvu, achipa kugona kwakasiyana-siyana kwekuvaka nekuisa.

1. Nhanganyaya Pfupi pamusoro peMapaipi eSimbi Nhema

Chigadzirwa	Pipe yeSimbi Nhema
Zvinhu	Simbi Yekabhoni Yakaderera
Giredhi	Q195 = S195 / A53 Giredhi A Q235 = S235 / A53 Giredhi B / A500 Giredhi A Q355 = S355JR / A500 Giredhi B Giredhi C
Zvakajairika	GB/T3091, GB/T13793API 5L/ASTM A53, A500, A36, ASTM A795
Magadzirirwo	ASTM A53 A500 sch10 – sch80
Pamusoro	Yakapendwa Nhema kana Nhema Yechisikigo
Kuguma	Migumo isina kujeka
	Migumo yakachekwa
	Migumo ine mitsetse

ASTM A53 Rudzi E	Kuumbwa kweMakemikari				Zvivakwa zveMichina
Giredhi resimbi	C (yakanyanya)%	Mn (yakanyanya)%	P (yakanyanya)%	S (yakanyanya)%	Simba rekupa MPa yeminiti	Simba rekusimba MPa yeminiti
Giredhi A	0.25	0.95	0.05	0.045	205	330
Giredhi B	0.3	1.2	0.05	0.045	240	415

Kuumbwa kwemakemikari							Hunhu hwemakanika, WT≤16mm
Zvakajairika	Giredhi resimbi	C (yakanyanya)%	Si (yakanyanya)%	Mn (yakanyanya)%	P (yakanyanya)%	S (yakanyanya)%	Mubereko mudiki simba MPa	Simba rekusimba MPa	Kureba kushoma %
GB/T 700-2006	Q235A	0.22	0.35	1.4	0.045	0.05	235	370-500	26
GB/T 700-2006	Q235B	0.2	0.35	1.4	0.045	0.045	235	370-500	26

DN	OD		ASTM A53 GRA / B		ASTM A795 GRA / B
DN	OD		SCH10S	STD SCH40	SCH10	SCH30 SCH40
MM	INCHI	MM	(mm)	(mm)	(mm)	(mm)
15	1/2”	21.3	2.11	2.77	-	2.77
20	3/4”	26.7	2.11	2.87	2.11	2.87
25	1”	33.4	2.77	3.38	2.77	3.38
32	1-1/4”	42.2	2.77	3.56	2.77	3.56
40	1-1/2”	48.3	2.77	3.68	2.77	3.68
50	2”	60.3	2.77	3.91	2.77	3.91
65	2-1/2”	73	3.05	5.16	3.05	5.16
80	3”	88.9	3.05	5.49	3.05	5.49
90	3-1/2"	101.6	3.05	5.74	3.05	5.74
100	4”	114.3	3.05	6.02	3.05	6.02
125	5”	141.3	3.4	6.55	3.4	6.55
150	6”	168.3	3.4	7.11	3.4	7.11
200	8”	219.1	3.76	8.18	4.78	7.04
250	10”	273.1	4.19	9.27	4.78	7.8

2. Mhando dzakasiyana dzemapaipi esimbi matema

Zvichienderana nemaitiro akasiyana ekugadzira, mapaipi matema esimbi anonyanya kukamurwa kuita mapaipi esimbi akasungirirwa uye mapaipi esimbi asina musono.

Pombi yeSimbi Yakasungirirwa:Mapaipi esimbi akasungirirwa anogadzirwa nekusanganisa maplate esimbi kana kuti zvidimbu zvakamonerwa muchubhu. Anozivikanwawo seERW (Electric Resistance Welded) pipe. Rudzi urwu rwepaipi runowanzova nesimba rakanaka uye kusimba. Maitiro ekugadzira mapaipi esimbi akasungirirwa ari nyore, uye anogona kugadzira zvikamu zvepaipi zvakareba nemutengo wakaderera.

Pipe yeSimbi Isina Musono:Pombi yesimbi isina musono inogadzirwa kuburikidza nekupisa kana kutonhora kwekumonera pasina misono yakasungirirwa. Rudzi urwu rwepombi rune simba rakawanda uye rwakachengeteka kana paine kumanikidzwa kwakanyanya uye mamiriro ezvinhu akaipisisa nekuti haruna nzvimbo dzisina simba (senge welds).

3. Pombi yesimbi nhema inoshandisirwei?

Pombi nhema inoshandiswa zvakanyanya mumabasa akasiyana-siyana, kusanganisira pombi dzemvura, kugoverwa kwegasi, uye rutsigiro rwechivakwa.

Pombi yesimbi isina musonoinogadzirwa isina misono kana welds, izvo zvinowedzera simba rayo uye zvinoita kuti ive sarudzo yakachengeteka yekutakura magasi nemvura pasi pekumanikidzwa kwakanyanya. Rudzi urwu rwemapaipi runonyanya kukosheswa mukushandiswa uko kusimba kwechimiro kwakakosha, senge mumapaipi emafuta negasi.
Pane rimwe divi,pombi yesimbi yakasungirirwa nhemaInoshandiswa zvakanyanya mumabasa akasiyana-siyana, kusanganisira mapaipi emvura, magasi ekufambisa uye masisitimu ekusasa moto. Hunhu hwayo husingatsvi hunoita kuti ikwanise kushandiswa mumasisitimu akadaro, uko kuvimbika uye kuchengetedzeka zviri zvinhu zvinonyanya kukosha.

4. Kudzora Hunhu hweMapombi Matema uye Kuendesa

1) Panguva yekugadzira uye mushure mekugadzira, vashandi veQC vane ruzivo rwemakore anopfuura mashanu vanoongorora zvigadzirwa zvisina tsarukano.
2) Rabhoritari inotenderwa nenyika ine zvitupa zveCNAS
3) Kuongororwa kunogamuchirika kubva kune mumwe munhu akagadzwa/akabhadharwa nemutengi, akadai seSGS, BV.
4) Yakatenderwa neMalaysia, Indonesia, Singapore, Philippines, Australia, Peru neUK. Tine zvitupa zveUL /FM, ISO9001/18001, FPC.

dzidza zvakawanda nezve zvitupa

Kurongedza uye Kutumira:
Ruzivo rwekurongedza: mumapaketi akasimba egungwa ane mashefu matanhatu akafukidzwa nesimbi, Ane zvisungo zviviri zvenylon zvepaketi imwe neimwe.

Ruzivo rweKutumira: Zvichienderana neQTY, kazhinji mazuva makumi maviri kusvika makumi matatu.

Chiteshi Chekutumira: Chiteshi cheTianjin muChina