—— Sanonpipe, Tō Kaiwhakarato Pono mō ngā Ngongo Rino Tika Paerewa o Rūhia

I. Tirohanga Whānui Paerewa: Te Kōhatu Matua o ngā Ngongo Tuitui Kore-Matao o Rūhia

GOST 8734-75(taitara katoa: Ngā ngongo maitai kore-tuitui kua whakapōturitia makariri. Awhe) ko te Rūhia (te USSR o mua)paerewa ā-ahu/whakakotahitangamō ngā ngongo maitai kore hononga i kumea matao, i hurihia matao rānei. I tīmata te mana i te 1 o Hānuere 1977. E kapi ana te paerewa i ngā ngongo kore hononga i hangaia matao (i hangaia mā te hurihuri matao, te kumea matao rānei) me tete whānuitanga o waho o te 1 mm ki te 200 mmmete matotoru o te pakitara mai i te 0.2 mm ki te 22 mm.

Mā te tukanga tōia/hurihuri makariri ka tino tika ngā āhua o ngā ngongo, ā, ka tino pai te kounga o te mata. Mā te whakarerekētanga makariri, ka whakatikatikaina ngā kirikiri maitai, ā, ka tino pai ake te kiato me ngā āhuatanga hangarau o te konganuku. Mā tēnei hangarau hanga makariri tino tika ka tino pai ake ngā ngongo i ngā ngongo hurihuri wera tuku iho e pā ana ki ngā āheinga āhua, te porowhita me te mutunga o te mata – he mea tino pai mō ngā taputapu tino tika, ngā pūnaha waipēhi, ngā hanganga miihini tino tika me te maha atu o ngā tono uaua.

Ko te paerewa e hangai ana ki te paerewa o te aoСТ СЭВ 1483-78ā, i whakaaetia e te Komiti Paerewa o te Kāwanatanga o te USSR i te 13 o Oketopa 1975 (Whakataunga Nama 2604). Ko te putanga whai mana o nāianei ko te tānga anō o te tau 2007.

II. Pūnaha Paerewa: Te Hononga Taurite i waenga i te GOST 8734 me te GOST 8733

I roto i te pūnaha paerewa o Rūhia,GOST 8734-75me whakamahi tahi me ōna whakatakotoranga hangarau hoaGOST 8733-87(Ngā ngongo maitai kore-whakaahua matao – Ngā tikanga hangarau). Ka hangaia ngātahitia e rātou he paerewa hua katoa mō ngā ngongo maitai:

Paerewa	Whānuitanga	Tūranga
GOST 8734-75	Te whānuitanga o te diameter o waho, te raupapa matotoru o te pakitara, ngā ātete ā-ahu, ngā momo roa me ngā rerekētanga e whakaaetia ana, te taumaha ariā	"Te āhua o te āhua" – ngā inenga
GOST 8733-87	Ngā tohu maitai, te hanganga matū, ngā āhuatanga miihini, ngā whakamātautau tukanga, ngā whakamātautau waipēhi, ngā ture tirotiro, te tohu, te takai	"He aha ngā rauemi, ā, he aha te kaha" – ngā whakaritenga hangarau

Tuhipoka hokoI roto i ngā tuhinga hangarau, i ngā ota hoko rānei,E tata ana te wā e whakahuatia ngātahitia ana a GOST 8733 me GOST 8734– he takirua e kore e taea te wehe.

III. Te Awhe Ahu me te Whakarōpūtanga

3.1 Awhe whānuitanga

Ko te paerewa GOST 8734-75 e kapi ana i ngā ine e whai ake nei:

Tawhā	Awhe
Diameter o waho	1 – 200 mm
Te matotoru o te pakitara	0.2 – 22 mm
Roa (matapōkere)	1.5 – 11.5 mita
Roa (pūmau)	4.5 – 9 mita(te rerekētanga rohe +10 mm)

3.2 Te whakarōpūtanga mā te matotoru o te pakitara

I runga i te ōwehenga o te diameter o waho (D) ki te matotoru o te pakitara (s), ka wehea ngā ngongo ki ngā wāhanga e whā:

Kāwai	ōwehenga D/s	Whakaahuatanga
Pakitara tino angiangi	D/s > 40	Tino māmā, mō ngā mahi whakaiti taumaha
Pakitara angiangi	D/s = 12.5 – 40	Ngā ngongo angiangi tuku iho
Pakitara matotoru	D/s = 6 – 12.5	Te kaha pēhanga teitei ake
Pakitara matotoru rawa	Ngā Wāhanga < 6	Ngā tono pēhanga tino nui

3.3 Ngā āheinga o waho

Te whānuitanga o waho (mm)	Te rerekētanga whakaaetia (mm)
4 – 10	±0.15
>10 – 30	±0.30
>30 – 50	±0.40
>50	±0.8%

3.4 Ngā ātete matotoru o te pakitara

Te whānuitanga matotoru o te pakitara (mm)	Te peka ke e whakaaetia ana
≤1.0	±0.12 mm
>1.0 – 5.0	±10%
>5.0	±8%

3.5 Ngā whakaritenga mō te tika

Te whānuitanga o waho (mm)	Piko mōrahi mō ia mita te roa
4 – 8	≤ 3 mm
>8 – 10	≤ 2 mm
>10	≤ 1.5 mm

TuhipokaMō ngā ngongo he 20-90 mm te whānui o waho, he whakaritenga tika ake o≤ 1 mm ia mita te roaka taea te whakaae.

IV. Tātaitanga Taumaha Ariā

E whakamahia ana e GOST 8734-75 te tātai e whai ake nei hei tatau i te taumaha ariā mō ia mita o te ngongo:

M = 0.02466148 × s × (Dₙ − s)

Kei hea:

M= taumaha mō ia mita (kg)

Dₙ= te whānui o waho ingoa (mm)

s= te matotoru o te pakitara (mm)

Te matotoru o te maitai= 7.85 karamu/cm³

Kei roto i te tāpiritanga paerewa ngā ripanga taumaha katoa mō ngā huinga katoa o te diameter o waho me te matotoru o te pakitara mai i te 0.3 mm ki te 24 mm. Ngā tauira:

Mō te pakitara 30 mm OD × 2.5 mm, te taumaha ariā ≈ 1.696 kg/m

Mō te pakitara 76 mm OD × 4.0 mm, te taumaha ariā ≈ 7.102 kg/m

V. Ngā Tohu Rino e Wātea ana

E ai ki te paerewa hoa GOST 8733-87, ka taea te whakaputa i ngā ngongo tui-matao mai i ngā momo momo maitai waro me te koranu:

Te kounga maitai	Momo	Te tono noa
Tau 10, Tau 20	He maitai hanganga waro kounga teitei	Te kawe wai, ngā hanganga whānui
Tau 35, Tau 45	He maitai hanganga waro kounga teitei	Te hanga mīhini, ngā wāhanga hanganga kaha-teitei
09Г2С (09G2S)	Rino iti-konumohe	Ratonga pāmahana-iti, hanganga kaha-teitei

Te ōritetanga o te aoHe tino rite te tukanga me te whakamahinga o ngā ngongo tuitui matao GOST 8734-75 kiASTM A519(ngā ngongo miihini maitai waro me te koranu kore-tuitui).

VI. Ngā Āpure Tono Noa

Ngā mihi ki ahe tino tika te āhua, he maeneene te mata, ā, he tino pai te arotahi, e whakamahia whānuitia ana ngā ngongo tui-makariri GOST 8734-75 i roto i:

Mara tono	Ngā whakamahinga motuhake	He aha i whiriwhiria ai
Mīhini tino tika	Ngā toki tino tika, ngā rango waipēhi, ngā wāhanga hau	Te tika teitei, te arotahi pai
Ngā pūnaha waipēhi me te hau	Ngā paipa hinu pēhanga teitei, ngā raina hau	He maeneene te mata o roto, he iti te ātete ki te rere
Ahumahi motuka	Ngā ngongo mimiti ru, ngā ngongo taputapu urungi	Te ōritetanga o ngā āhuatanga
Matū matū	Ngā ngongo taputapu, ngā raina tohu	Ātete pēhanga pono
Te whakaputa hiko	Ngā paipa āwhina mō te kohua	He pai te mahi pāmahana teitei

Ki te whakatauritea ki ngā ngongo hurihuri wera, mā te tukanga tōia matao ka pai ake ngā ngongo GOST 8734-75 i roto i:

Te tika o ngā āhuatangaKo ngā āheinga OD he pūmau ki te ±0.15 mm (ngā rahi iti), he pai ake i te mea huri-wera.

Kounga mataHe maeneene i roto, i waho – kua rite mō te huihuinga tika me te kore he miihini tāpiri.

Te arotahiHe matotoru ōrite te pakitara, he mea tino pai mō te tukatuka tika i muri mai.

VII. Ngā Paerewa Taurite o te Ao

Pūnaha paerewa	Paerewa e rite ana	Whakaahuatanga
Haina (GB)	GB/T 3639-2021	Ngongo maitai tui-matao, hurihuri-matao rānei
USA (ASTM)	ASTM A519	Ngongo miihini maitai waro me te koranu korekore
Rūhia (GOST)	GOST 8734-75(ngā rahinga) +GOST 8733-87(ngā tikanga hangarau)	Whakamahia ngātahi

Tuhipoka ōriteKo te paerewa Hainamana tata rawa atu ki te GOST 8734-75 koGB/T 3639-2021(Ngā ngongo maitai kore-tuitui tika, he mea kumea matao, he mea hurihuri matao rānei), e ōrite ana i roto i te tono (mahi matao tino tika) me te tukanga hanga. Hei tāpiri, ka taea te tohutoro ki te GB/T 8162 (ngā ngongo kore-tuitui hanganga) me te GB/T 8163 (ngā ngongo kore-tuitui kawe wai), engari ko te GB/T 3639 te mea tino ōrite i roto i te tukanga tika me te mahi matao.

VIII. He aha i whiriwhiri ai koe i a Sanonpipe?

Ā mātou painga	Ngā Taipitopito
Tohungatanga paerewa	Te māramatanga hōhonu ki te pūnaha GOST 8733/8734 – ka whakamārama tika mātou i ngā whakaritenga paerewa katoa o Rūhia
Te whakapūmautanga rauemi	Te whānuitanga katoa o ngā momo e hipokina ana – 10#, 20#, 45#, 09Г2С, me ētahi atu, me ngā tiwhikete rauemi katoa.
Te tino tika kua whakamanahia	Ko ngā ngongo katoa i hangaia kia rite tonu ki ngā whakaritenga manawanui GOST 8734-75 – he tika te rahinga pono
Awhe rahi katoa	Ka tukuna e mātou te whānuitanga katoa o ngā diameter o waho1–200 mmme ngā matotoru o te pakitara0.2–22 mm
Tukunga tere	Me te 20,000 tāne o te taonga e toe ana, ka tukuna atu ngā ota tere.i roto i ngā rā 7–15
Ratonga mai i te pito ki te pito	Mai i te uiui, te whakamārama hangarau me te whakahua utu ki te tuhinga me te whakahaere – tuku kotahi-mutu
Te whakapau kaha kore-mōrearea	Neke atu i te 240 ngā tirotiro whakahaere kounga ā-roto, me ngā tuhinga me te kore he rerekētanga

IX. Whakapā mai

E whakapau kaha ana a Sanonpipe ki te whakarato i ngā ngongo maitai kore-whakairo kounga teitei e tutuki ana i te GOST 8734-75 ki ngā kiritaki o te ao katoa. Ahakoa e hiahia ana koe ki ngā ngongo miihini tika, ngā ngongo waipēhi, ngā ngongo hanganga rānei, ka tukuna e mātou he tautoko hangarau ngaio me ngā otinga tuku ngāwari.

Tauira whakaahuatanga whakatakotoranga noa:

Труба стальная бесшовная холоднодеформированная 57×3.5 ГОСТ 8734-75 / В 20 ГОСТ 8733 87
(Ngopū maitai kore-whakairo matao 57×3.5, ngā rahinga i runga i te GOST 8734-75, te karaehe maitai 20, ngā tikanga hangarau i runga i te GOST 8733-87)

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Info@Sanonpipe.Com
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