Lub tej kua (coolant): kev faib tawm, daim ntawv thov

Metalworking txheej txheem yog inherently txuam nrog ib tug muaj zog sib haum xeeb uas tshwm sim ntawm lub workpiece thiab lub cuab tam. Qhov no yog tshwj xeeb yog tshwm thaum txoj siav thiab milling tej hauj lwm, thaum lub cuab tam yog tsis tshua muaj kub, txias extrusion, high-ceev rocker tsaws. Khaus txhuam txhawb rau ntxov ntxov coj ntawm lub cuab tam, cov yas deformation ntawm lub workpiece, hloov thaj chaw ntawm cov hlau vim overheating. Yuav kom txo tau cov kev sib txhuam quab yuam yuav tsum tau ib tug tshwj xeeb tej kua (coolant) thiab qhov kub thiab txias decreases.

Tsis faib coolants

General kev faib coolants nqa tawm nyob rau ob peb tsis:

• Nyob rau hauv keeb kwm ntawm lub Cheebtsam. Ua roj coolant, uas yog raws li nyob rau hauv cov roj av roj, tsiaj los yog zaub rog.
• Los ntawm txoj kev linking. Emulsol - ib tug khoom tiav nrog ib tug ntev lub txee lub neej los yog kev emulsion, npaj tam sim ntawd ua ntej yuav siv ntawm cov concentrate raws li GOST.
• Nyob rau lub cev thiab cov neeg kho tshuab tsis - viscosity, acid tooj, flash point. Cov yav tas yam ntxwv ua rau daim ntawv thov ntawm coolant roj rau kub Stamping.
• Raws li hauv daim ntawv thov teb. Nws ua ntau hom coolants rau txawv operating tej yam kev mob ntawm daim ntawv thov. Khoom cua txiav kua rau yas deformation ua hauj lwm, coolant rau lathes los yog milling machine.

Cov khoom cua dej soluble coolant universal EFELE CF-621 raws li ib tug concentrate npaj rau machining ntawm cam khwb cia irons, steels, xws li stainless thiab hlau, titanium, txhuas thiab tooj liab alloys. Qhov no coolant Lavxias teb sab ntau lawm muaj ib tug amber xim thiab qab ntxiag caramel aroma. Nws tsis muaj formaldehyde, tshuaj thiab theem nrab amines, li ntawd, muaj kev nyab xeeb rau cov tib neeg. Ua los ntawm cov khoom cua Cheebtsam nrog rau qhov sib ntxiv (15%) ntxhia roj muaj pes tsawg leeg, qhov no emulsion muaj ib tug uas tsis muaj nqi, ib tug yam ntxwv ntawm cov mineral khoom. Biostability thiab kev kawm ntawv EFELE CF-621 pub machining co tshuaj yog tsawg piv mus rau lwm cov coolant ntau.

Ib suam ntawm coolant muaj pes tsawg leeg

Nyob rau hauv muaj pes tsawg leeg ntawm lub coolant paub qhov txawv cov nram qab no:

• Roj - formulations ntawm lub Cheebtsam uas yog immiscible nrog dej. Base roj emulsion yog paraffin, mineral los sis cov roj av roj (60-95%). Lug txhim khu lub hauj lwm zoo ntawm anti-coj, kev sib txhuam, corrosion nyob rau hauv muaj pes tsawg leeg muaj xws li ntau yam additives thiab inhibitors. Roj emulsion muaj zoo heev lubricating zog. Siv rau mos co ntawm tej yam yooj yim kev khiav hauj lwm hom.
• Mineral - puag ua los ntawm cov roj los ntawm catalytic hydrogenation. Yuav kom nce lub hauj lwm zoo ntawm cov additives muaj los ntawm cov rog, tshuaj chlorine ua, sulfur, phosphorus tebchaw. Cov compositions yog siv nyob rau hauv xws hom hlau, xws li: txiav steel, aluminium, tooj dag, threading, milling ua hauj lwm alloyed steels.
• Dej miscible - ib tug aqueous tov raws li nyob rau hauv ntxhia roj. Cov compositions muaj zoo cua txias zog thiab tsis tshua muaj toxicity, tab sis tus uas tsis muaj lubricating kev kawm. Scope - lub teeb thiab medium luag hauj lwm xa tooj liab thiab bronze, milling thiab drilling ntawm tag nrho cov hom ntawm uas tsis yog-ferrous co, sib tsoo thiab xuas nrig ntaus hlau.
• Khoom cua thiab semisynthetic - ib tug sib tov ntawm dej, surfactants, dej soluble polymers, anti-foaming thiab antibacterial additives, xeb inhibitors. Yuav kom nce lub lubricity nyob rau hauv hluavtaws compositions kuj muab antiwear additives.
• Emulsions - compositions nrog END ntawm dispersed hais. Txo cov degree ntawm coj ntawm cov cuab yeej thiab cov khoom siv nyob rau hauv txhua metalworking hauj lwm.

Tus qauv thiab mechanism ntawm qhov kev txiav txim ntawm lub coolant

Lub thoob plaws siv ntawm coolants nyob rau hauv cov hlau ua dab vim lub zoo sib cais ntawm cov tshuaj ntxuav cov hniav ntawm lub workpiece thiab lub cuab tam thiab txo lawv kub. Qhov zoo tshaj coolant yuav muaj xws li cov nram qab no Cheebtsam nyob rau hauv nws muaj pes tsawg leeg:

• Lub hauv paus ntawm cov khoom cua roj los sis cov tsiaj nqaijrog.
• Additives uas ua rau kom cov frictional coj thiab huab siab kev kawm ntawv.
• Cheebtsam, tiv thaiv delamination muaj pes tsawg leeg thaum lub sij hawm cia.
• Additives uas tiv thaiv corrosion thiab kev puas tsuaj.
• Cheebtsam, txo foaming thiab tso zis ntawm tej chaw uas nyob rau hauv cov hlau.

Kev siv cov coolant

Metalworking kua yog siv rau ntub thiab txias ua hauj lwm cheeb tsam nyob rau hauv cov hlau. Properties coolant tso cai los txo kev sib txhuam nyob rau hauv cov kev kho mob tsam, li no kom txhob muaj coj ntawm lub cuab tam, ua cov khoom zoo los ntawm kev txhim kho cov kev siv ntawm tus txheej txheem thiab, raws li ib tug tsim nyog tau, zuag qhia tag nrho productivity.

Vim lawv zoo lubricating thaj chaw ntawm lub coolant thiaj li frictional quab yuam ntawm cov workpiece nto thiab tej ntug ntawm lub cuab tam, lub tsis sib haum xeeb nyob rau hauv cov hlau txheej txiav. Ib txhia kev lubricant muaj tshuaj thaj chaw uas txhawb ib tug txo tsis tau tsuas yog lub frictional quab yuam, tab sis kuj cov tej kev quab yuam. Feem ntau cov coolant - surfactants uas muaj adsorption zog. Lawv yog cov tau tsim ib tug ruaj khov zaj duab xis nyob rau hauv lub hlau nto, uas muaj nuj nqis thiaj tsis sib haum xeeb. Ib txhia tshwj xeeb surfactant additives muaj nyob rau hauv cov hlau "wedging" txiav txim. Elongated molecules xws additives poob mus rau hauv microcracks nyob rau hauv lub hlau nto, zoo li ib tug npoo, yog li weakening lub daim ntawv cog lus ntawm tus hais ntawm cov khoom. Yog li, coolant "pab" cov ua hauj lwm cov cuab tam mus txiav ib tug txheej ntawm lub hauv paus hlau.

Cov feem ntau coolant compositions rau tshuab cov cuab yeej

Metalworking lathes thiab milling tshuab yog manufactured nram qab no kua:

• Emulsoles raws li nyob rau hauv cov mineral thiab cov roj av roj.
• Emulsifiers nrog hluavtaws fatty acids.
• Txoj siav thiab milling ua hauj lwm, muab high-ceev ua ntawm stainless thiab hlau steels, ua nyob rau hauv raws li GOST 38.01445-88. Rau cov hom phiaj, muab hluavtaws compositions uas yog raws li nyob rau hauv tallow roj vysokoatomnye alcohols triethanolamine.
• Sulfofrezoly - mas lim roj sib tov thiab leej faj uas muaj tebchaw. Tsis txhob muaj dej, alkalis, acids. Tej coolant rau cov cav tov zoo txo kev sib txhuam, tsis ua corrosion.

Daim ntawv thov ntawm coolant mus rau lub siab kev kho mob ntawm hlau

Qhov no txoj kev yog txuam nrog tseem ceeb hlau-kev quab yuam thiab txheeb ze zawv zawg ntawm lub workpiece thiab lub cuab tam. Coolant siv nyob rau hauv xws dab yuav tsum muaj ib tug ho muaj dua viscosity. Cov yam ntxwv nta ntawm lub compositions, metalworking siab yog:

• Txaus viscosity.
• Kuj mus puas thiab sib cais nyob rau high school kub tej yam kev mob.
• Thov vodnografitovye tonkocheshuychatogo compositions nrog rau lub xam nrog ntawm graphite raws li nyob rau hauv cov roj ncua kev kawm ntawv.

Nta ntawm daim ntawv thov ntawm tej kua

Yog xav paub ntxiv kev siv ntawm lub coolant yuav tsum xav txog ib tug ob peb yam yooj yim cov kev cai.

• Yam tsawg kawg nkaus kua ndlwg, tsis hais seb nws yog ib aqueous los yog emulsion - 10-15 l / min.
• Nws yog ib qho tseem ceeb tias cov coolant txaus yog nyob rau hauv lub tshav pob ntawm kev kawm ntawv qhov ntau tshaj ntawm tshav kub. Thaum tig - yog ib thaj chaw uas cov chips sib cais los ntawm lub workpiece.
• Cov mov ntawm coolant yuav tsum tau nqa tawm sai li sai tau. Thaum lub coolant tom qab ib tug thaum kub heev cutter yuav muaj hnub tuag, ua nyob rau hauv lub tsim ntawm tawg nyob rau hauv nws.
• Coolant yog tsis tau thov thaum txoj siav nkig hlau (bronze, hlau, thiab lwm yam). Thaum tig xws ntaub ntawv tsim me me chips, uas sib tov xyaw nrog cov coolant, yuav txhaws lub tshuab ua hauj lwm rau lwm (carriage caliper, phau ntawv no ncej), uas ua rau yus ntxov ntxov coj thiab tsis ua hauj lwm ntawm cov Cheebtsam.

Qhuav thiab cia ntawm tej kua

Nyob rau hauv tas li ntawd mus ntev cia ntawm tiav lawm compositions, concentrates, thiab manufactured yam rau qhov kev npaj ntawm kua, nruj heev heev rau tej yam kev mob ntawm ib qho kev enterprise. Coolant, coolant, tus nqi uas nyob tsuas yog nyob rau hauv lub muaj pes tsawg leeg coj mus rau ib tug kev hom ua hauj lwm nyob rau hauv hnub no tus lag luam yog pom tau hais rau 70-160 rubles / liter rau ready-made compositions ntawm domestic producers thiab 105-290 rubles / liter ntawm txawv teb chaws ntau lawm. Qhov nruab nrab nqi ntawm cov concentrate yog 240 r / liter. Ua ntej thov kev lub kua los ntawm lub nram qab no txoj kev:

• Stirring twb ua nyob rau ntawm lub Cheebtsam ntsia pes tsawg leeg thiab stamp kub (60-110 0 C).
• Analysis ntawm muaj pes tsawg leeg nyob rau hauv raws li GOST.
• Qhov npaj compositions yog muab nyob rau hauv tshwj xeeb ntim, uas nqa tawm periodic cua kub thiab zaj.
• Nyob rau hauv kev npaj cov emulsion, cov kev taw qhia ntawm additives, uas yog nqa rau ib tug nyias Vibratory emulsification.
• Refilling nruam noj apparatus.
• Nyob rau hauv kev siv lub compositions yog kab mob. Muab coolant purification system ntawm cov hlau residues. Khib khoom uas hais tias tsis tau zoo ntxuav rau pov tseg.