Valve industry hmasawnna chhunzawm zel (1967-1978) .
01 Industry hmasawnna a nghawng
Kum 1967 atanga 1978 thleng khan khawtlang nun inthlak danglamna nasa tak avang hian valve industry hmasawnna pawh nasa takin a nghawng a ni. A lan chhuahna ber chu:
1. Valve chu a ni output nasa takin a tlahniam a, quality pawh nasa takin a tlahniam bawk
2. Valve chu a ni scientific research system lo piang tan tawh chu a nghawng nasa hle
3. Medium pressure valve products te chu hun rei lote chhung atan an lo awm leh ta
4. Ruahman lawk loha high leh medium pressure valve siam chhuah a lo lang tan ta
02 “Valve short line” tih sei nan hma la rawh .
Thil siam chhuah quality invalve chu a niindustry a tlahniam nasa hle a, hun rei lote chhunga high leh medium pressure valve product siam a nih hnuah state chuan hei hi a ngai pawimawh hle a ni. First Ministry of Machinery-a Heavy and General Bureau chuan valve industry-a technical transformation-a mawhphurtu tur valve group an din a. Valve team hian ngun taka chhui chian leh zirchianna an neih hnuah “High and Medium Pressure Valve-te tana Production Measures siam chungchanga ngaihdan hrang hrangte report” an siam a, chu chu State Planning Commission-ah an thehlut a ni. Research an neih zawh hnuah high leh medium pressure tlakchhamna nasa tak chinfel nan technical transformation kalpui turin valve industry-ah yuan maktaduai 52 invest tura thutlukna siam a nivalve te a awm leh quality tlahniam a rang thei ang bera tih a ni.
1. Kaifeng inkhawm vawi hnih
Kum 1972 May thla khan First Machinery Department chuan ram pum huap a buatsaih avalve a niindustry work symposium chu Henan Province-a Kaifeng khawpuiah neih a ni. He meeting-ah hian unit 125 leh valve factory 88, scientific research leh design institute kaihhnawih 8, provincial leh municipal machinery bureau 13 leh users ṭhenkhat aṭangin palai 198 an tel a ni. Meeting-ah hian industry-a pawl pahnih leh intelligence network siamṭhat leh tura rel a ni a, high-pressure leh low-pressure team hruaitu atan Kaifeng High Pressure Valve Factory leh Tieling Valve Factory te thlan a ni a, intelligence network hna thawk tur hian Hefei General Machinery Research Institute leh Shenyang Valve Research Institute te chu mawhphurtu atan an thlang bawk. Meeting-ah hian “three modernizations”, product quality tihchangtlun, technical research, product division, leh industry leh intelligence lama hmalakna tihhmasawn chungchangah thil hrang hrang sawiho leh zirchian a ni bawk. Chumi hnuah chuan industry leh intelligence lama kum ruk chhung tihtawp tawh chu a chhunzawm leh ta a ni. Heng hmalaknate hian valve siam chhuahna tichaktu leh hun rei lote chhunga thil awmdan tihdanglamna kawngah hmun pawimawh tak a chang a ni.
2. Industry organization hnathawh leh information inthleng chhunzawm leh
Kum 1972-a Kaifeng Conference zawhah industry group hrang hrangte chuan an hna an thawk leh ta a. Chutih lai chuan industry organization-ah hian factory 72 chauh an tel a, valve factory tam tak chuan industry organization-ah hian an la tel lo. Valve factory tam thei ang ber buatsaih theih nan region tin hian industry hnathawh dan tur an buatsaih vek a ni. Shenyang High and Medium Pressure Valve Factory, Beijing Valve Factory, Shanghai Valve siamna, Wuhan Valve siamna,Tianjin Valve siamna hmun a ni, Gansu High leh Medium Pressure Valve Factory, leh Zigong High Pressure Valve Factory te hian hmarchhak, hmarchhak China, hmarchhak China, Central South, hmarchhak, leh Chhimchhak Region-ah te mawhphurhna an nei ve ve a ni. Hetih hunlai hian valve industry leh intelligence activity te chu chi hrang hrang leh rahbi thar chhuah a ni a, industry lama factory te pawhin an duh hle. Industry hnathawhna hmasawnna te, tawnhriat inthleng fo te, intanpui tawnna leh inzir tawnna avang te hian product quality tihchangtlunna a tichak mai bakah factory hrang hrangte inpumkhatna leh inṭhianṭhatna a tipung a, chutiang chuan valve industry chuan inpumkhatna pum pui, inlungrual taka, kut insuih Going forward, showing a vibrant and growing scene a siam ta a ni.
3. Valve products “three modernization” te chu kalpui rawh
Kaifeng meeting pahnih rilru put hmang leh First Ministry of Machinery-a Heavy and General Bureau ngaihdan angin General Machinery Research Institute chuan vawi khat chu industry-a factory hrang hrangte active taka puihnain valve “three modernization” hna lian tak a buatsaih leh ta a ni. “Tree modernizations” hna hi technical work bulpui pawimawh tak a ni a, hei hi enterprise-te technological transformation chak zawk leh valve product level tihsan nan hmalakna tangkai tak a ni. Valve “three modernizations” working group hian “four good” (hman awlsam, siam awlsam, siamthat awlsam leh matching tha) leh “four unification” (model, performance parameters, connection leh overall dimensions, standard parts) principle angin hna a thawk a ni. Hnathawh thupui ber hian kawng pathum a nei a, pakhat chu chi hrang hrang inzawmkhawmte awlsam zawka siam a ni a; pakhat zawk chu technical standard batch siam leh siamthat a ni a; pathumna chu thil siam chhuah thlan leh tihfel a ni.
4. Technical research hian scientific research tihhmasawn a tichak hle
(1) Scientific research team siam leh test base siam Kum 1969 kum tawp lamah chuan General Machinery Research Institute chu Beijing atangin Hefei-ah sawn a ni a, flow resistance test device hmasa ber chu tihchhiat a ni a, chu chuan scientific research nasa takin a nghawng a ni. Kum 1971 khan scientific researcher-te chu team-ah hian a hnungzuiin an lo kir leh a, valve research laboratory chu mi 30 chuangah a pung a, technical research buatsaih turin ministry-in a ti a ni. Laboratory awlsam tak siam a ni a, flow resistance test device dah a ni a, pressure bik, packing leh test machine dangte design leh siam a ni a, valve sealing surface leh packing chungchanga technical research chu tan a ni.
(2) Hlawhtlinna lian ber ber Kum 1973-a neih Kaifeng Conference chuan kum 1973 atanga 1975 thleng khan valve industry tana technical research plan a siam a, research project pawimawh 39 a rawt bawk. Chung zingah chuan thermal processing item 8, sealing surface item 16, packing item 6, electric device item 1, test leh performance test item 6 a awm bawk. A hnuah Harbin Welding Research Institute, Wuhan Material Protection Research Institute, leh Hefei General Machinery Research Institute-ah te, regular inspection buatsaih leh buatsaihtu tur special personnel ruat an ni a, high leh medium pressure valve-a basic parts chungchanga work conference pahnih neih a ni a, experience, mutual assistance leh exchange, 1976 -Basic parts research plan siamin kum 1980 khan unanimous efforts of industry pumpuiah technical research hnaah hlawhtlinna ropui tak tak a awm a, hei hian valve industry-a scientific research tihhmasawn a tichak hle. A rah chhuah ber chu hetiang hi a ni:
1) Sealing surface-ah tack rawh. Sealing surface research hian internal leakage of buaina chinfel a tum a nivalve chu a ni. Chutih lai chuan sealing surface materials chu 20Cr13 leh 12Cr18Ni9 a ni ber a, hardness a hniam a, wear resistance a tha lo a, valve product-ah internal leakage problem lian tak a nei a, service life pawh a tawi hle. Shenyang Valve Research Institute, Harbin Welding Research Institute leh Harbin Boiler Factory te chuan triple-combination research team an din a, hei hi a hlawhtling hle a ni. Kum 2 chhung zet thawhrimna hnuah chrome-manganese sealing surface surfacing material chi thar (20Cr12Mo8) siam a ni. Material hian process performance tha tak a nei a. Scratch resistance tha tak, service life rei tak, leh nickel awm lo leh chromium tlem zawk, resources te hi domestic atanga siam theih a ni a, technical appraisal hnuah promotion atan a hlu hle.
2) Research tihpun. Packing research an neih chhan chu valve leakage chungchanga harsatna awm thin chinfel nan a ni. Chutih lai chuan valve packing chu oil-impregnated asbestos leh rubber asbestos a ni ber a, sealing performance a tha lo hle a, hei hian valve leakage nasa tak a thlen a ni. Kum 1967 khan General Machinery Research Institute chuan chemical plant thenkhat, oil refinery leh power plant thenkhat chhui turin external leakage investigation team an din a, chumi hnuah packing leh valve stem chungchangah anti-corrosion test research nasa takin an kalpui a ni.
3) Product performance testing leh theoretical research bulpui te. Technical research a kalpui lai hian, .valve industry te chu a niproduct performance testing leh basic theoretical research te pawh chak takin a nei a, result tam tak a hmu bawk.
5. Enterprise hrang hrangte technology lama inthlak danglamna kalpui
Kum 1973-a Kaifeng Conference zawhah industry pumpui chuan technology lama inthlak danglamna an kalpui a. Chutih laia valve industry-a harsatna awm berte: Pakhatnaah chuan a kalphung chu a hnungtawlh a, casting chu kutchhuak vek a ni a, single-piece casting a ni a, general-purpose machine tools leh general-purpose fixtures te chu cold working atan hman a ni tlangpui. Factory tina chi hrang hrang leh specification te hi a duplicate lutuk vang a ni a, ram pumah pawh a tam hle a, mahse factory tina sem chhuah a nih hnuah chuan production batch a tlem hle a, hei hian production capacity exertion a nghawng a ni. A chunga kan sawi tak harsatnate chhanna atan hian First Ministry of Machinery-a Heavy and General Bureau chuan a hnuaia hmalaknate hi a rawn siam a: high leh medium pressure valve factory awmsa te buatsaih a, ruahmanna inzawmkhawm siam, hnathawktute rilru dik taka insem, leh mass production tihpun technology hmasawn tak tak an hmang a, production line an din a, factory pawimawh leh blank-ah te thawhhona an nei bawk. Steel casting workshop-ah hian cast steel blank production line 4 din a ni tawh a, factory pawimawh parukah cold processing production line 10 siam a ni tawh bawk a vaiin yuan maktaduai 52 zet chu technology lama inthlak danglamna atan hman a ni.
(1) Thermal processing technology inthlak danglamna Thermal processing technology inthlak danglamnaah hian water glass tidal shell mold, fluidized sand, tidal mold leh precision casting te ang chi technology te chu a lar hle a. Precision casting hian chip-less emaw chip-free emaw machining pawh a tihlawhtling thei. Gate, packing gland leh valve body leh bonnet of small-diameter valve atan a tha a, economic lama hlawkna a awm chiang hle. Kum 1969 khan Shanghai Lianggong Valve Factory chuan precision casting process chu valve siamnaah an hmang hmasa ber a, PN16, DN50 gate valve body,
(2) Cold working technology inthlak danglamna Cold working technology inthlak danglamnaah hian valve industry-ah hian special machine tools leh production line te hman a ni. Kum 1964 daih tawh khan Shanghai Valve No. 7 Factory chuan gate valve body crawler type semi-automatic production line an design a, an siam chhuak a, hei hi valve industry-a low-pressure valve semi-automatic production line hmasa ber a ni. Chumi hnuah Shanghai Valve No. 5 Factory chuan kum 1966 khan DN50 ~ DN100 low-pressure globe valve body leh bonnet semi-automatic production line an design a, an siam chhuak ta a ni.
6. Chi thar chak taka siam chhuah leh set kimchang level tihsan
Petroleum, chemical industry, electric power, metallurgy leh petrochemical industry ang chi hmanraw set lian tak tak mamawh phuhruk nan, valve industry chuan technology lama inthlak danglamna rual hian chak takin thil thar a siam chhuak a, hei hian valve product matching level a tichangtlung hle a ni.
03 Thuhmahruai
Kum 1967-1978 chhunga thil thlengte thlir kir leh ila, hmasawnna...valve a ni industry chu vawi khat chu nasa takin a nghawng a ni. Petroleum, chemical, electric power, metallurgy leh coal industry te hmasawnna chak tak avang hian high leh medium pressure valve te chu hun eng emaw chen chu “short-term product” a lo ni ta a ni. Kum 1972 khan valve industry organization chuan hna a thawk tan leh a, hna a thawk tan ta a ni. Kaifeng conference pahnih neih zawhah chak takin “three modernizations” leh technical research hna an thawk a, industry pumpuiah technology lama inthlak danglamna thlipui a siam a ni. Kum 1975 khan valve industry chu a siamthat tan a, industry production pawh a tha zawkin a kal ta a ni.
Kum 1973 khan State Planning Commission chuan high leh medium pressure siam chhuah tihpunna tur infrastructure measures chu a pawm avalve te a awm. Investment hnuah hian valve industry chuan inthlak danglamna awm thei chu a kalpui ta a ni. Technology lama inthlak danglamna leh tihhmasawn hmangin technology hmasawn tak tak thenkhat chu hman a ni a, chutiang chuan industry pumpuiah cold processing level chu a tlem berah tihchangtlun a ni a, thermal processing-a mechanization degree pawh a tichangtlung hle bawk. Plasma spray welding process tihhmasawn a nih hnuah high leh medium pressure valve-a product quality pawh nasa takin a ṭha chho a, “one short and two leakage” tih buaina pawh a ṭha chho bawk. Infrastructure measures project 32 zawh leh kalpui a nih tawh avangin China-a valve industry hian lungphum nghet zawk leh thil siam chhuah theihna nasa zawk a nei a ni. Kum 1970 atang khan high leh medium pressure valve te output hi a pung zel a. Kum 1972 atanga 1975 thleng khan 21,284t atanga 38,500t ah a pung a, kum 4 chhungin net pung 17,216t a ni a, kum 1970-a kum khata output nen a inang a, kum khata low-pressure valve output chu 70,000 atanga 80,000 tons level-ah a ding reng a ni. Hemi hun chhung hian .valve chu a ni industry-in chak takin thil thar a siam a, general-purpose valve chi hrang hrangte chauh ni lovin, power station, pipeline, ultra-high pressure, low temperature leh nuclear industry, aerospace leh special-purpose valve dangte tana special valve te pawh nasa takin an siam chhuak bawk. Kum 1960 chho kha general-purpose valve siamna ropui tak hun a nih chuan kum 1970 chho kha special-purpose valve siamna hun ropui tak a ni. Domestic te tanpui theihna a awmvalve te a awm nasa takin tihchangtlun a ni a, hei hian a bul berah chuan ram economy sector hrang hrangte hmasawnna mamawh a phuhruk a ni.
Post hun chhung: Aug-04-2022
