Cov txheej txheem muaj npe zoo ntawm kev hlawv cov qauv qhib ua haujlwm uas siv lub tshuab ua pa hlawv, hu ua guilloche. Thaum ua haujlwm hauv cov txheej txheem no, nws yooj yim los siv kev lag luam muaj roj hlawv, piv txwv li "Dymok", "Vyaz", "Txawv". Tab sis rau qhov no, cov cuab yeej siv no yuav tsum tau hloov kho me ntsis thiab hloov kho.
Nws yog qhov tsim nyog
Ib qho khoom siv hluav taws xob zoo rau kev hlawv, piv txwv li, "Qauv-1"
Cov Lus Qhia
Kauj ruam 1
Nkag siab cov hluav taws xob hluav taws xob ntawm lub tshuab hluav taws xob. Raws li txoj cai, nws muaj cov kauj ruam ib kauj ruam hloov hluav taws xob uas ua kom tsis txhob qhov hluav taws xob hauv lub tshuab txuas ob mus rau 1.5-3 V. Qhov hluav taws xob tsawg mus rau rheostat uas tswj lub zog tam sim no. Qhov tam sim no los ntawm rheostat mus rau qhov ntsuas lub koob, uas txuas rau tus kov, uas ua yeeb yam.
Kauj ruam 2
Nrog cov txheej txheem zoo li no, nws yooj yim rau hlawv ntawm ntoo, vim qhov no feem ntau yuav tsum muaj qhov kub siab ntawm rab koob. Rau kev tsim cov ntaub tuab tuab (yaj, ntom finlen, crimplen), cov txheej txheem no kuj tsim nyog. Tab sis rau cov ntaub thinner thiab muag heev, lub cua sov ntawm rab koob hloov tawm kom dhau qhov kev ua ntau dhau thiab ua rau yaj ntawm qhov chaw kho ntawm cov ntaub. Nrog nylon, piv txwv li, nws tsuas yog tsis yooj yim sua kom ua haujlwm nrog cov pa taws ntawm roj. Yog li ntawd, npaj mus kho qhov schematic daim duab ntawm lub hlawv cov cuab yeej.
Kauj ruam 3
Solder ib qho kev tawm tsam ntxiv nrog cov nqi nominal siab ntawm kwv yees li 1.5 kOhm thiab dissipation zog ntawm 2 watts rau hauv lub ntaus cim. Qhov no yog qhov yuav tsum tau vim tias ib qho tseem ceeb tam sim no ntws hauv theem ob winding ntawm lub hloov pauv. Koj tuaj yeem ua yam tsis tau hloov kho lub cuab yeej, tab sis rau qhov no koj yuav tau tswj qhov cua sov ntawm rab koob uas siv cov cuab yeej tshwj xeeb hu ua qhov ntsuas hluav taws xob.
Kauj ruam 4
Hloov kho rab koob burner zoo li. Feem ntau tsuas yog cov tuab hlawv rab koob suav nrog nrog cov khoom siv. Ua ib rab koob dua ntawm nichrome xaim nrog ntu ntu ntawm 0.5-1 hli thiab ua kom qhov kawg ntawm rab koob. Lub koob lub cev tuaj yeem hloov kho. Txhawm rau ua qhov no, ua txoj siv xaws xaws li niaj zaus # 3 lossis # 4, maj mam tsoo nws cov pob muag. Ntxig qhov kawg ntawm rab koob mus rau hauv lub tshuab. Txo rov qab los ntawm rab koob taw tes los ntawm txog 4-5 hli, qhwv nws nrog nichrome xaim rau ib feem peb ntawm qhov ntev. Thaum ua cov ntaub ntawv nrog cov twisted koob, nthuav qhia round dots yog tsim.
