Kachulukidwe wa brake fluid. Kuyeza bwanji?

Kuchulukana kwa DOT-4 brake fluid ndi ma glycol ena

Kuchulukana kwamadzimadzi odziwika kwambiri masiku ano, DOT-4, pansi pazikhalidwe zabwinobwino, kumasiyana kuyambira 1,03 mpaka 1.07 g/cm.³. Kutentha kwabwino kumatanthawuza kutentha kwa 20 ° C ndi mphamvu ya mumlengalenga ya 765 mmHg.

Chifukwa chiyani kusachulukira kwamadzi omwewo molingana ndi gulu kumasiyana kutengera mtundu womwe amapangidwira? Yankho lake ndi losavuta: mulingo wopangidwa ndi dipatimenti yoona zamayendedwe ku US sukhazikitsa malire okhwima pakupanga mankhwala. M'mawu ochepa, muyezo uwu umapereka: mtundu wa maziko (wa DOT-4 awa ndi glycols), kukhalapo kwa antifoam additives, corrosion inhibitors, komanso mawonekedwe a ntchito. Komanso, muzochita zogwirira ntchito, mtengo wokhawo umatchulidwa, pansipa yomwe chizindikiro chimodzi kapena china chamadzimadzi sichiyenera kugwa. Mwachitsanzo, kuwira kwatsopano (popanda madzi) DOT-4 kuyenera kukhala osachepera 230 ° C.

Zigawo zotsalira ndi kuchuluka kwake zimapanga kusiyana kwa kachulukidwe komwe kungawonedwe muzamadzimadzi kuchokera kwa opanga osiyanasiyana.

Madzi ena opangidwa ndi glycol (DOT-3 ndi DOT-5.1) ali ndi makulidwe ofanana ndi DOT-4. Ngakhale kusiyana kwa zowonjezera, gawo loyambira, glycol, limapanga pafupifupi 98% ya chiwerengero chonse. Chifukwa chake, palibe kusiyana kwakukulu pakuchulukira pakati pamitundu yosiyanasiyana ya glycol.

DOT-5 Silicone Fluid Density

DOT-5 madzimadzi amakhala ndi silikoni m'munsi ndi Kuwonjezera zina pa zolinga zosiyanasiyana, zambiri chimodzimodzi monga ena formulations mabuleki kachitidwe.

Kachulukidwe wamadzimadzi a silikoni omwe amagwiritsidwa ntchito popanga zida zogwirira ntchito pama brake system ndiocheperako poyerekeza ndi madzi. Pafupifupi ndi 0,96 g/cm³. Ndizosatheka kudziwa mtengo weniweni, chifukwa ma silicones alibe utali wokhazikika wa mayunitsi a siloxane. Mkhalidwewo ndi wofanana ndi ma polima. Mpaka maulalo 3000 amatha kusonkhanitsidwa mu unyolo wa molekyulu ya silikoni. Ngakhale kuti pafupifupi kutalika kwa molekyulu ndi yochepa kwambiri.

Zowonjezera zimapeputsa m'munsi mwa silicone. Chifukwa chake, kachulukidwe ka ma brake fluid okonzeka kugwiritsa ntchito DOT-5 ndi pafupifupi 0,95 g/cm.³.

Kodi mungawone bwanji kachulukidwe ka brake fluid?

Ndizovuta kulingalira kuti ndani komanso chifukwa chiyani kunja kwa mafakitale angafunike njira yotere monga kuyeza kuchuluka kwa madzimadzi a brake. Komabe, pali njira yoyezera mtengowu.

Mutha kuyeza kapangidwe ka glycol ndi hydrometer yomweyo yopangidwira kuyeza kuchuluka kwa antifreeze. Chowonadi ndi chakuti ethylene glycol, chinthu chofananira, chimagwiritsidwa ntchito ngati maziko a antifreeze. Komabe, cholakwikacho chidzakhala chachikulu mukamagwiritsa ntchito njirayi.

Njira yachiwiri idzafuna masikelo olondola (ocheperako magawano, abwinoko) ndi chidebe chomwe chikugwirizana ndendende ndi magalamu 100 (kapena 1 lita). Njira yoyezera motere imachepetsedwa kukhala ntchito zotsatirazi.

1. Timapima zotengera zouma, zoyera pa sikelo.
2. Thirani ndendende magalamu 100 a brake fluid.
3. Timayezera chidebecho ndi madzi.
4. Amachotsa kulemera kwa namsongole kuchokera pa kulemera kwake.
5. Gawani mtengo womwe wapezeka mu magalamu ndi 100.
6. Timapeza kachulukidwe ka brake fluid mu g / cm³.

Mwa njira yachiwiri, ndi zolakwika zina, mutha kuyeza kuchuluka kwa madzi aliwonse. Ndipo musaiwale kuti kachulukidwe amakhudzidwa kwambiri ndi kutentha kwa kapangidwe kake. Choncho, zotsatira za miyeso yotengedwa pa kutentha kosiyana zikhoza kusiyana.

Brake fluid Volvo I Kusintha kapena kusasintha, ndilo funso!