Bayyani
Bawulmuhimmin samfurin ne a cikin kayan masarufi. An sanya shi a kan bututu daban-daban ko na'urori don sarrafa kwararar matsakaici ta canza yankin tashar a cikin bawul ɗin. Ayyukan sa sune: Haɗa ko yanke matsakaici, hana matsakaici daga matsakaiciyar matsakaiciyar matsakaici, raba pipenes, raba bututun da kayan aiki, da sauransu.
Akwai nau'ikan samfuran bawaye da yawa, waɗanda aka kasu kashibawul mai, Drobe bawul bawul,Duba bawul, bawul bawul,malam buɗe ido, toshe bawul, bawul din diaphragm, bawul din aminci, yana daidaita bawul (bawul na sarrafawa), yanayin bawul), matsa lamba, matsin lamba, da sauransu.; Dangane da kayan, an rarrabe su cikin jan karfe alloy, carbon karfe, carny karfe biyu, da sauransu. Badves ga masana'antar nukiliya, bawuloli don jiragen ruwa da bawuloli masu kukan cryobenic. Da yawa kewayon sigogi na bawul, girman nominal daga DN1 (naúrar a cikin mm) zuwa DN9750; nominal matsa lamba daga matsanancin-vair 1× 10-10 mmhg (1mmhg = 133.322pa) zuwa matsanancin matsanancin matsanancin ƙarfi na PN1400 (kashi na 105 pa); Harshen zafin jiki yana aiki daga zafin jiki mai ƙarancin-or-low zazzabi na -269℃Zuwa ga yawan zafin jiki mai tsayi na 1200℃.
Kayayyakin bawul Ana amfani da su sosai a cikin sassan tattalin arziƙin kasar, kamar mai, man gas da tsarin kayan abinci, ikon samar da kayan abinci, iko da tsarin samar da wutar lantarki; Ana amfani da nau'ikan valves da yawa a cikin dumama da kuma tsarin samar da wutar lantarki, tsarin samar da ruwa, motoci da kayan aiki da magudanar ruwa da magudanar gida. Bugu da kari, a cikin filayen sabbin fasahohin kamar tsaro da Aerospace, daban-daban bawuloli ana amfani da su.
Asusun samfuran bawul na babban adadin samfuran injiniyan. Dangane da ƙididdigar ƙididdigar ƙasashen Masana'antu na ƙasashen waje, ƙimar ƙimar Balves na kusan 5% na darajar fitarwa na masana'antar kayan masarufi. A cewar kididdiga, tsire-tsire na nukiliya na gargajiya sun hada da raka'a miliyan biyu suna da misalai 28,000 kusan 12,000 sune bawuloli na tsibirin nukiliya. Wani hadadden babban hadaddun Petrochechical na zamani yana buƙatar ɗaruruwan dubban batutuwa daban-daban, da kuma saka hannun jari a kan bawulan asusun don 8% zuwa 10% na jimlar hannun jari.
Yanayin Yanayin Masana'antu a Tsohon Kasar Sin
01 Haihuwar Masana'antu ta Kasar Sin: Shanghai
A tsohon kasar Sin, Shanghai shi ne farkon wurin da za su kirkira bawul. A cikin 1902, PAN SHUNJI Taron titin titin, wanda aka samo a kan Wuyayya Road, Distan Hongko, Shanghai, ya fara kera kananan batches na teapot famfo da hannu ta hannu. TeAlot daddancin wani nau'in jingina ne mai jefa zakara. Shine farkon mai samar da mai kera a kasar Sin da aka sani. A cikin 1919, Hesa (Shengji) masana'antar kayan aiki (na magabata na Shanghai) ya fara daga ƙaramin keken hawa, bawuloli, bawuloli bawuloli da kuma wuta. Wanda yake cinyewa daga bakulan baƙin ƙarfe na cikin 1926, tare da matsakaicin girman nps6 (a inci, NPS1 = DN25.4). A wannan lokacin, masana'antu masana'antu kamar Wang Yingqiang, Dahua, Lao Demao da Maoxu suma bude don samar da ikila. Bayan haka, saboda karuwa a cikin bukatar bututun mai, wani tsari na kayan masana'antu, masana'antu na yashi (jefa) masana'antu da masana'antun masana'antu, subing) masana'antu da masana'antu.
An kafa kungiyar masana'antu a bangarorin Zhonghongqiao, waihongqao, lalata hanya da kuma Changzhi Road a gundumar Hongkou, Shanghai. A wancan lokacin, mafi kyawun samfuran sayarwa a cikin kasuwar cikin gida kasance "kai na doki", "ball anga" da "m ball" da "Eagle Ball". Loweraramin matsin iska da aka sare da aka yi amfani da samfuran ƙarfe ƙarfe ne don amfani da bawuloli da kayan kare baƙin ƙarfe. Wadannan masana'antu suna da karami sosai a sikeli, tare da fasahar shuka mai sauki da kuma karancin kayan shuke-shuke da kuma fitowar masana'antar bawul na kasar Sin. Daga baya, bayan kafa kungiyar kwadationungiyoyin gine-ginen Shanghai, wadannan masana'antun bawunta sun shiga kungiyar daya bayan wani kuma ya zama kungiyar ruwa. memba.
02two manyan masana'antun masana'antu
A farkon 1930, masana'antar Shanghai Shenhe da masana'antu mai ƙarancin matsin lamba arba'in da ke ƙasa a cikin NPS12 don ayyukan ruwa. A cikin 1935, masana'antar ta kafa haɗin gwiwa tare da Xiangfeng Iron Co., Ltd. An kammala masu hannun jari, akwai wasu ma'aikata 100, tare da shigo da 2.6 Zhang (1 Zhang≈3.33m) lake) da kuma kayan aiki da kuma kayan abinci na kayan abinci, da kuma nps18, kuma yana iya tsara da wadatar da ~ nps18, kuma yana iya fitarwa da samar da Nanjing, Hangzhou da Beijing. Bayan "Agusta 13" wadanda ke "mamayar mamayar Jafananci sun mamaye Shanghai a shekarar 1937, mafi yawan tsire-tsire da kuma kayan aikin da aka lalata shi. A shekara mai zuwa ta karu da babban birnin da sake farawa. NSPS14 ~ NPS36 jefa bawuloli na baƙin ƙarfe, amma saboda rashin kwanciyar hankali na tattalin arziki, kasuwancin sluggish, da kuma austerations, ba su iya murmurewa ba har sai Hauwa'u ta kafa sabuwar ƙasar Sin.
A shekara ta 1935, masu hannun jari biyar wadanda suka hada da Lighai, dan kasuwa na kasa, wanda ya riga ya kafa masana'antar ƙarfe, wanda ya riga ya gabatar da karatuttukan Shishiwei, Shenyang City. Gyara da kuma masana'anta. A shekara ta 1939, masana'antar ta koma kan Titin Sierma, gundumar Tiexi don fadada, da manyan bita guda biyu don simintin da machining an gina. A 1945, da ya girma ga ma'aikata 400, kuma manyan samfuran su sune: ƙurarar bawuloli, da kuma ƙasa jefa bawuloli na baƙin ƙarfe tare da girman da ke ƙasa. Shenyang Chengfa Iron Favel ne mai samar da kera mai fama da gwagwarmaya don tsira daga tsohon kasar Sin.
03The masana'antar bawul a cikin na baya
A lokacin yaƙin Anti-Japan, yawancin masana'antar da aka yi a cikin Shanghai da sauran wuraren sun koma kudu maso yamma, da yawan masana'antar a cikin yankin da aka baya, kuma an fara bunkasa. A cikin 1943, Chongqing Factory Factory Factory Factes of Chongqing Valves Factesie da Kare Badvels Matsakaicin Balaguro da Kare Badves na Bashi Bayan nasarar Anti-Jafananci, Listeng masana'antar kayan aiki, Al'umma na masana'antar Jinshunking, masana'antar kayan lambu da aka buɗe a jere don samar da ƙananan bawul. Bayan kafa sabuwar sabuwar China, an haɗa wadannan masana'antu cikin masana'antar bawaka na Chongqing.
A wancan lokacin, wasuMasana'antuA cikin Shanghai ya tafi Tianjin, Nanjing da Wuxi don gina masana'antu don gyara da masana'anta babils. Some hardware factories, iron pipe factories, machinery factories or shipyards in Beijing, Dalian, Changchun, Harbin, Anshan, Qingdao, Wuhan, Fuzhou and Guangzhou have also been engaged in repairing and manufacturing some plumbing valves.
Lokaci: Jul-2122
