Tapawa na-egweri valvụ. Kedu nke ị ga-ahọrọ?

Gịnị mere egweri valves?

Lapping bụ ụdị nchacha mgbe ihe abrasive, na-adaba n'etiti akụkụ nke siri ike dị iche iche, na-etinye n'ime ihe dị nro. N'ihi ya, ịdị ọcha elu nke ngwaahịa siri ike na ụzọ esemokwu na-abawanye. A na-eji ogige lapping eme ihe n'ọtụtụ ebe na-arụ ọrụ mmezi akpaaka iji nweta nhazi ziri ezi nke akụkụ angular nke valvụ na oche. Maka valvụ ndị gbawara agbawa nke ọma, ebe a na-ahụ maka kọntaktị na-abawanye okpukpu abụọ.

Ngwunye valvụ dị elu na-edozi nsogbu abụọ:

• Na-emepụta akara ka mma n'etiti valvụ na isi, nke ga-egbochi gas ịpụ n'oge strok mkpakọ.
• Na-egbochi ọkụ valvụ dị ka mpaghara kọntaktị na-abawanye na-enye ohere ịnyefe ọkụ ka mma site na valves gaa n'isi.

A na-eme lapping site n'itinye ihe mejupụtara pụrụ iche - valve lapping paste - na nsọtụ nke valves, na-esote ntụgharị ha n'akụkụ isi.

Ihe mejupụtara tapawa lapping

Ihe ndị bụ isi nke valvụ egweri pastes bụ:

1. Mmanụ na-abawanye ikike okpomọkụ ma na-ebelata okpomọkụ n'elu ala. Ụfọdụ tapawa na-adabere na mmiri iji belata viscosity.
2. Abrasive dị mma nke na-emepụta polishing.
3. Ihe ndị na-eme antioxidants na-ebelata mechanochemical eyi.
4. Ndị na-emepụta ihe na-emepụta ihe na-eme ka ọ dị mma na ndụ valve.
5. Ngwakọta ọkụ.

A na-ekpebi ịdị irè nke mado valvụ ọ bụla site n'ụdị abrasive. A na-eji Carborundum, ibe diamond, silicon dioxide, glass, aluminum oxide, yana silicon na boron carbides.

A na-ekewa tapawa lapping valve site na nke siri ike ruo nke ọma. N'ime mpempe akwụkwọ na-enweghị isi, ihe ndị ahụ abrasive dị nnọọ ukwuu, ya mere a na-eji ya eme ihe siri ike. Ka oke ọka nke tapawa lapping dị elu, ka ọ na-akawanye mma ka ọ na-arụ.

Mmanụ na abrasive tapawa nwere ọrụ dị iche iche: ebe abrasive na-abawanye esemokwu, mmanụ ahụ na-ebelata ya, na-amachi ike ịkpụ n'otu oge ahụ. Mmanụ (ma ọ bụ mmiri) bụkwa ihe ndabere nke ụmụ irighiri ihe na-akpụ akpụ na-agagharị n'oge ịta nri.

Ụfọdụ ndị ọrụ na-eji aka ike belata viscosity mbụ nke tapawa, nke a na-anabataghị: n'ihi ya, ike na-ebu ibu na mbelata mmetụta nke abrasive ahụ n'elu ala na-ebelata. A na-asacha ihe ndị ahụ n'onwe ha ngwa ngwa, nke na-eduga n'ịba ụba nke oriri nke ogige lapping.

Atụmatụ nke lapping

N'agbanyeghị ụdị nke mado valvụ, ị kwesịrị ịgbaso ndụmọdụ ndị a:

1. Tupu ịmalite ọrụ, ọ dị mkpa ịpịa akụkụ ahụ ka ọ bụrụ ala dịka o kwere mee megide oyi akwa nke ntanye lapping.
2. A na-agbanye mmewere a ga-ala n'ala mgbe niile n'oge a na-egweri ihe ruo mgbe oke ihe mejupụtara pụtara na oghere dị n'etiti akụkụ ahụ.
3. A ghaghị ime ntụgharị nke n'apata ahụ ruo mgbe ike nke mmegharị nke akụkụ ndị ahụ mating na-ebelata: nke a na-egosi na a na-ewepụ ihe ndị na-eme ka abrasive si na mpaghara nhazi, ma ọ bụ naanị mmanụ ma ọ bụ mmiri na-ejikọta ya.
4. Ọ bụrụ na ọ dị mkpa ka a gaa n'ihu na-egweri, a ga-ewepụ pasta ochie ma tinye nke ọhụrụ.

Enwere ike ime njikwa mma nke valvụ egweri n'ụlọ site na iji ụzọ abụọ - "na pensụl" na "na kerosene". N'okwu nke mbụ, a na-etinye ihe ruru akara isii n'elu site na iji pensụl dị nro, nke kwesịrị ịdị na ntụziaka radial. A na-etinye akụkụ ndị ahụ lapped ma mee ntụgharị 2…3. Ọ bụrụ na ihe egwu dị, a ga-aga n'ihu na-egweri. Iji lelee kerosene, a na-ehichapụ akụkụ ndị ahụ mating ma tinye ya na mpempe akwụkwọ ọcha dị ọcha, mgbe nke ahụ gasịrị, a na-awụnye obere kerosene n'ime oghere ahụ. Ọ bụrụ na mgbe awa 6 ... 7 enweghị akara kerosene n'akụkụ nke ọzọ, egweri na nwere ike iwere zuru oke.

otú e si egweri valvụ ma lelee àgwà egweri

Valve egweri mado. Kedu nke ka mma?

A na-achịkọta ọkwa nke pastes dị n'okpuru site na nyocha sitere n'aka ndị na-anụ ọkụ n'obi ụgbọ ala n'onwe ha:

1. "Classical" (onye na-emepụta VMPAvto, Russia). Kwesịrị ekwesị maka ụdị engines ọ bụla, ọ nwere ihe mejupụtara akụkụ abụọ, nke na-enye ohere ka ọ bụrụ ihe na-adịghị mma na nke ọma. Ogo ọka sitere na 0,53 ruo 0,9 microns, ha na-amalitekwa na-arụ ọrụ nke nta nke nta, dị ka ihe siri ike nke ebe a na-emeso ya na-agbanwe. Ọnụ ego a na-akwụ ụgwọ sitere na 600 rubles. maka 400 g nke ngwaahịa. Rịba ama na VMPAauto na-emepụta pasta pụrụ iche nke ukwuu n'okpuru otu ụdị - diamond na ọkachamara, nke dabara naanị maka mmanụ dizel na mmanụ ụgbọala, n'otu n'otu. Ọnụahịa nke pastes ndị dị otú ahụ dị elu: dịka ọmụmaatụ, maka diamond - site na 220 rubles. kwa ngwugwu 100 g.
2. ABRO Grinding Tapawa GP-201 sitere na akara ABRO (USA). O nwekwara ihe ndị na-esighị ike na nke ọma, nke dị n'akụkụ dị iche iche nke akpa ahụ. Ego na oriri, na-ejide nke ọma n'elu a na-ete ya. Ọnụahịa nke ngwugwu na-eru 100 g sitere na 150 rubles.

3. Mmetụta (emepụtara na St. Petersburg). Nkwakọ ngwaahịa ahụ na-agụnye karama abụọ nwere nnukwu mado dị mma, yana ihe nkesa iji mee ka usoro egweri dị mfe. Ọnụahịa - site na 160 rubles. maka 90 g nke ngwaahịa.
4. Permatex (onye nrụpụta - USA). Ọ bụ nke otu ngwakọta mmiri-soluble pastes, nke ị nwere ike ọ bụghị nanị na-egweri valvụ, kamakwa ọcha chrome na-ebupụta nke ụgbọ ala. Ọnụahịa - site na 550 rubles. kwa ngwugwu.

Ekwesiri iburu n'uche na nkewa nke pastes lapping n'ime ọkachamara na onye na-amu amu bụ ihe aka ike, a na-egosipụtakwa ya naanị na olu nke otu ngwugwu ngwaahịa.

Otu esi eme ihe nkedo lapping nke gị maka valvụ lapping