Cov kev xav tau ntawm kev ua haujlwm rau lub txim taws

Clearance xav tau
Qhov sib txawv ntawm cov electrodes ntawm lub txim hluav taws xob muaj qhov cuam tshuam loj rau nws txoj haujlwm. Yog tias qhov sib txawv me me dhau lawm, lub txim tsis muaj zog thiab ua rau cov pa tawm vim cov pa roj carbon deposition; Yog tias qhov sib txawv loj dhau lawm, qhov yuav tsum tau ua kom tawg hluav taws xob nce ntxiv, ua rau nws nyuaj rau lub cav pib thiab ua rau "misfire" ntawm kev kub ceev, qhov sib txawv ntawm qhov hluav taws xob yuav tsum tsim nyog. Feem ntau, qhov sib txawv ntawm lub qhov hluav taws xob siv hauv cov roj teeb hluav taws xob yog {{0}}}7-0.8mm, thiab qee qhov qhov hluav taws xob txuas tuaj yeem ncav cuag 1.0mm lossis ntau dua.
Qhov ntsuas kub xav tau
Lub rwb thaiv tsev ntawm lub txim hluav taws xob (xa mus rau lub conical ib feem ntawm lub rwb thaiv tsev sab nraum lub hauv paus electrode ntawm lub txim hluav taws xob) ncaj qha hu rau cov roj kub kub hauv lub combustion chamber thiab absorbs ib tug loj npaum li cas ntawm tshav kub. Cov cua kub absorbed yog pauv mus rau lub tog raj kheej taub hau thiab cua los ntawm lub casing. Cov kev sim tau pom tias txhawm rau ua kom lub cev ua haujlwm ib txwm muaj ntawm lub tshuab hluav taws xob, lub rwb thaiv tsev ntawm cov hluav taws xob hluav taws xob yuav tsum tuav qhov kub ntawm 500-600 degree (qhov ntsuas kub no hu ua qhov ntsuas kub ntawm lub txim hluav taws xob). Yog tias qhov kub thiab txias qis dua qhov nqi no, cov pa roj carbon deposits yuav tsim rau ntawm lub rwb thaiv tsev daim tiab, ua rau electrode to thiab cuam tshuam lub txim hluav taws xob. Yog tias cov rwb thaiv tsev kub siab dhau (tshaj 900 degree), thaum cov khoom sib xyaw ua ke nrog cov rwb thaiv tsev kub, qhov kub kub yuav tshwm sim, ua rau lub cav pib thaum ntxov. Qhov kub thiab txias ua haujlwm ntawm lub qhov hluav taws xob yog nruab nrab ntawm 450 thiab 870 degree. Hauv qhov no, lub qhov hluav taws xob tig daj xim av. Yog tias qhov kub thiab txias ua haujlwm ntawm lub txim hluav taws xob qis dua 450 degree rau lub sijhawm ntev, yuav muaj ntau cov pa roj carbon deposition nyob ib ncig ntawm lub txim taws, thiab lub txim taws yuav dub [9].
kev ua tau zoo
Cov kev xav tau tseem ceeb rau lub txim hluav taws xob yog cov yam ntxwv thermal, tensile lub zog, kub tsis kam, conductivity, rwb thaiv tsev lub zog, sealing kev ua tau zoo, thiab corrosion kuj.
Lub txim hluav taws xob yuav tsum tau ua kom sov, thiab qhov uas nws tau muab ntsia rau hauv yuav tsum tau muab tso rau hauv lub cub hluav taws xob hluav taws xob lossis hluav taws xob hluav taws xob uas tau ua kom sov rau qhov kub ntawm 700 degree rau 10 feeb, thiab tom qab ntawd txias hauv huab cua. Yuav tsum tsis txhob tawg los yog cov noob tawg rau ntawm qhov chaw ntawm lub insulator.
Spark plug sealing kev ua tau zoo yuav tsum tau ua: Tom qab ua qhov ntsuas kub tsis kam, cov pa tawm ntawm huab cua yuav tsum tsis pub tshaj 40cm3 ib feeb ntawm qhov sib txawv ntawm 1MPa (yog tias lub hauv paus electrode nplaum yog ua los ntawm cov khoom siv sib khi, cov pa tawm yuav tsum tsis pub tshaj 5cm2. ib feeb).
Lub txim hluav taws xob hluav taws xob sib dhos yuav tsum tuaj yeem tiv taus lub zog zaus (50Hz) ntawm 2200vV (tus nqi zoo) rau lub sijhawm sim ntawm 30 vib nas this.
Khoom siv: Lub conductivity ntawm qhov chaw electrode thiab sab electrode ntawm lub txim hluav taws xob nyob ntawm qhov kev sib cuag ntawm cov electrode thiab cov khoom sib tov, yog li cov electrode muaj qhov xav tau siab heev rau kev tiv thaiv corrosion. Nyob rau tib lub sijhawm, qhov kub thiab txias thaum lub sij hawm combustion yog qhov siab heev, thiab cov khoom siv electrode yuav tsum muaj kev kub ntxhov. Yog li ntawd, ntau lub txim hluav taws xob siv nickel manganese alloy. Txhawm rau txhim kho cov cua sov, qee qhov hluav taws xob tseem siv cov khoom siv nickel clad tooj liab. Copper gaskets tsis tau tsuas yog muaj thermal conductivity, tab sis kuj ua hauj lwm raws li cov ntsaws ruaj ruaj. Lub insulator yog ua los ntawm high alumina ceramics.