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Kev uas quav cwj mem - kawm perfection

Txij li thaum lub hnub ntawm cov tsiaj qus cov pab pawg neeg cov neeg raug teev. Savages scratched hluav ncaig ntawm cov phab ntsa tsua. Ces sharpened sticks pleev xim rau cov tawv ntoo ntawm cov ntoo. Nrog kev vam meej - tsim thiab sau ntawv.

Lub ntsiab yam ntawm cwjmem

Nyob rau hauv hnub no lub ntiaj teb no, sau tsis muaj tsuas yog, pib nrog 7 xyoo ntawm lub hnub nyoog, thiab txawm ua ntej lawm. Thiab yog vim li cas xwb tam sim no muaj yog: tus cwj mem qhuav, tej cwj mem kob, tej cwj mem kos, tej cwj mem kob ... Ib tug central qhov chaw yog nyob los ntawm cov Nws Majesty "tus poj huab tais" kov. Thiab nws yog li muaj ntau haiv neeg. Nws koj yuav nrhiav tau nyob rau hauv ob peb ntaub ntawv (hom). lawv txawv nib thiab muab faib ua:

  • pob;
  • plaub;
  • capillary.

Cov ciav cwj mem nib - ib tug cwj mem. number case yog tsis tsim nyog rau ib tug niaj hnub ciav cwjmem. Rau lawv, muab qhov tseeb cartridges. Tab sis tseem muaj cwjmem, refillable number case. Nws yog twb nyob rau hauv koj kev txiav txim.

Nyob rau hauv lub ballpoint cwj mem nib - ib tug conical raj los yog acicular duab uas muaj ib lub pob (cov menyuam) uas tsis hlau los yog tej hub. Rau ballpoint cwjmem muaj xws li gel cwj mem thiab rollerball cwj mem.

Ib tug txawv feature ntawm lub yav tas hom cwjmem nyob rau hauv tus number case mov system - nws yog ib tug capillary. Nrog rau qhov no pas nrig yooj yim sau rau ntawm daim ntawv tseem yog ib tug zoo nkauj thiab du daim duab. Tab sis, yog hais tias koj nyob ntev rau hauv lub taw tes, nws rasplyvotsya. Muaj 3 hom ntsis cwjmem :

  • liner;
  • painters;
  • rapidograph.

Thiab yog dab tsi ib tug menyuam-cwj mem?

Kev uas quav cwj mem - qhov no yog qhov zoo tshaj plaws zoo ntawm ib tug ballpoint cwj mem. Nws yog nws peculiarity yog tias cov pob yog nqaim. Dej-raws li inks - tsawg khov. Yog li ntawd, txoj kab rau ntawm daim ntawv yog ib tug ntau du thiab meej. Qhov no kov suab sau nws tus kheej, nws yuav tsis tau ib tug muaj zog nias rau daim ntawv thaum lub sij hawm sau ntawv. Tsis tas li ntawd, cov cwjmem muaj ntau yig number case noj, thiab nws yog los ntawm 3000 mus rau 10 000 m.

Cov kev pab cuam rollerball cwjmem

Rollerball cwj mem yoojyim zoo tib yam hneev taw raws li ib tug plaub. Raws li yog lub npe hu mus rau tag nrho, tus cwj mem sau zoo nkauj heev. Tab sis tej zaum nws yuav pib kos daim ntawv nrog lub sij hawm (txawm lub feem ntau kim qauv). Kev uas quav yuav tsis ua li no.

Yog hais tias koj khiav tawm ntawm number case nyob rau hauv ib tug ciav cwj mem, thiab koj tsis txhob siv replaceable cartridges, ces sau ib tug cwj mem - nws yog ib tug txheej txheem. Thiab khiav tawm ntawm number case nyob rau feem ntau inopportune caij. Thiab nyob rau hauv cov menyuam cwj mem refills.

Qws kov-rau cov menyuam yog ua los ntawm cov hlau los yog polymer (yas). Nyob rau hauv ob qho tib si tus number case zoo cov ntaub ntawv uas tsis cuam tshuam. Tus txheej txheem ntawm kev hloov lub pas nrig yog tsis ntau tham tshaj hais tias ntawm ib txwm ballpoint cwj mem. Qhib, muab tso rau lub empty, muab tso rau ib tug tshiab, kaw. Npaj kom txhij los mus!

Muaj ntau ntau chaw ua hauj lwm mov manufacturers. Lawv yuav tsum tau muab faib ua peb cov chav kawm ntawv: kev khwv nyiaj txiag hauv chav kawm ntawv, ua lag ua luam hauv chav kawm ntawv thiab hwm cov chav kawm ntawv. Xav txog cov ntau lawm ntawm peb tuam txab poklassovo: Pilot (kim kev khwv nyiaj txiag), nees txaij (nruab nrab nqi txoj cai ua lag ua luam class) thiab Parker (premium-class).

Pilot cwj mem tuam txhab

Pilot Company - ib tug loj, thoob ntiaj teb, nws tshwm sim nyob rau hauv lub lag luam ntawm chaw ua hauj lwm cov khoom siv rau tshaj li 100 xyoo. Nws regional chaw ua hauj lwm nyob rau hauv lub 50 xyoo ib ncig ntawm lub ntiaj teb no. Nyob rau hauv 1991, tus tsav tau tuaj mus rau Russia. Lub tuam txhab kab ntawm Pilot rollerball cwj mem yog nyob rau hauv Frixion series.

BL-FRP5 Frixion point - ib tug tshiab cwj mem uas quav Pilot nyob rau hauv lub series. Yog thiab yooj yim sau ntawv no cwj mem yog tias muaj siab zoo siab. Ink tsis kis tau rau ntawm daim ntawv mus rau qhuav sai sai. Stylus koob. Cov kab uas hla ntawm lub pas nrig ntawm 0.5 hli, Kab dav ntawm 0.25. Lub cev nqaij daim tawv ntais ntawv cov xim ntawm tus number case. Qws hloov.

BL-FRO7 Frixion PRO - ib tug tshwj xeeb cwj mem-rollerball Pilot chav kawm ntawv ntawm "sau-lwv". Feem ntau, muaj cov 2 hom cwjmem "write-lwv".

Thawj feature yog hais tias lub tshwj xeeb number case yog erased ib tug dog dig lwv los ntawm cov saum toj txheej ntawm daim ntawv. Tab sis muaj yog ib tug loj drawback: tus number case yog absorbed rau hauv daim ntawv, tej zaum kuj sib sib zog nqus thiab tsis yooj yim sua kom tshem tawm cov kev sau ntawv.

Qhov thib ob erasure ntsiab cai - ib tug tshwj xeeb "dawb" neutralizing number case uas cov ntaubntawv raug ua los. Lub disadvantage yog hais tias nws yog yooj yim sua kom ib tug tshiab cov ntaubntawv povthawj siv rau cov obliterated.

Pilot ob xyoo tsim ib tug cwj mem rollerball "write-lwv". Lawv xaiv ib tug tshiab txoj kev: lawv number case ploj, tab sis, theej, yog sis tsuas kob nyob rau hauv tus ntawm kub. Qhov no yog ua raws li ib tug roj hmab band nyob rau thaum xaus ntawm tus kov. Tshiav - thiab tus number case yuav ploj. Ua li no yuav tau rov qab. Tab sis muaj lwm kom pom tseeb nyob rau hauv no cwj mem. Cov ntaub ntawv, lwv, thiab ces txias rau daim ntawv. Piv txwv li, nyob rau hauv lub tub yees rau hauv qab no -18 degrees Celsius. Rau cov ntaubntawv povthawj yuav qhia dua. Common nta ntawm tej leeg: Pob txoj kab uas hla - 0.7, lub thickness ntawm kab - 0.35, lub cev nqaij daim tawv - Dub number case 3 xim. Muaj yog ib tug ntxiv.

Tuam haujlwm txais BL-FR-7 Frixion pob txheeb ib tug series ntawm "write-lwv". Lawv kuj muaj ib tug tshwj xeeb cov pos hniav tshuaj dawb tso. Tab sis lawv txawv los ntawm lub yav dhau los series nyob rau hauv lub fact tias muaj ntau ntau xim ntawm number case. Common yam ntxwv yog tib yam, tsuas yog cov xim: nws hnov rau cov xim ntawm tus number case.

Kov rau nees txaij tus

Nees txaij cwj mem Corporation tau nrhiav tau raws li ib qho kev ywj lub tuam txhab nyob rau hauv lub tebchaws United States nyob rau hauv 1982. Tab sis cov keeb kwm ntawm lub hom pib lawm txawm tias, nyob rau hauv 1914, lub tuam txhab Nees txaij Co. Ltd. Nws tsim yog Mr. Ishikawa. Nws lub tuam txhab tau khaws cia PACE nrog lub sij hawm thiab nyob rau hauv 1917 los ua tus thawj tau siv lub twj tso kua mis rau number case cwjmem. Nyob rau hauv 1957, thawj neeg ua hauj lwm ntawm lub tuam txhab tau tsim ib tug ballpoint cwj mem. Thiab, ntawm chav kawm, xws li ib invention li rollerball cwj mem, yog tsis tau dhau los ntawm lub tuam txhab.

Nees txaij cwj mem rollerball yog ntawm kev zoo siab thiab ib tug coj tus nqi. Uas yog vim li cas lawv yuav tsum tau xyuam xim ntaus nqi mus rau cov lag luam hauv chav kawm ntawv qeb.

Cov kab ntau ntawm scooters. Zeb-kev uas quav DX5 thiab DX7 yog koob zoo li thiab xub-sau ntawv o, ntsig txog. Lub thickness ntawm cov kab nyob rau hauv Zeb-kev uas quav DX5 0,5 hli, thiab nyob rau hauv Zeb-kev uas quav DX7 - 0,7 hli. Tsab ntawv teeb, tus number case yog tsis qhov muag plooj, nws yog tau sau txawm upside down. Rollerball cwj mem number case noj txo kom super saving.

Lub tuam txhab muaj ib tug tshwj xeeb Nees txaij cwj mem uas quav Gel Nees txaij pencitil. Nws feature yog nyeem nyob rau hauv lub title. Nws inks - gel-raws li, es dej-raws li.

Luxurious Parker cwj mem

Zoo li tag nrho cov qhov zoo tshaj plaws nyob rau hauv lub ntiaj teb no, Parker pib lub tuam txhab nrog cov kev xav tau. George Safford Parker, 17 xyoo, pib ua hauj lwm nyob rau hauv hlua taws xob lub tsev kawm ntawv nyob rau hauv Janesville, Wisconsin. Lub nyiaj hli nws tau txais yog me me, uas yog vim li cas nws coj nyob rau hauj lwm ntxiv. Parker los ua ib tug neeg sawv cev rau cov muag khoom ntawm tug ciav cwjmem. Nyob rau ntawm lub sij hawm lawv tsis txawv siab zoo. Kev tsis txaus siab thiab rov qab tau ntau.

George pib kho cov cwjmem lawv tus kheej. Thiab, raws li nws muab tawm los, nws puas tau nws zoo heev. Pom hauv tag nrho cov shortcomings ntawm cov cwjmem, nws lub tsev nws tus qauv. Thiab twb nyob rau hauv 1889 muaj ib lub thawj tug ciav cwj mem Parker.

Teb, rau lub tuam txhab sau npe nyob rau hauv 1892, thiab txij thaum ntawd los, Parker - synonymous nrog hwj chim thiab undisputed zoo. Niaj hnub no, lub tuam txhab ua qhov zoo tshaj plaws cov khoom ntawm lub qeb nyob rau hauv lub ntiaj teb no. Parker rollerball cwj mem yog ib txwm nyob rau hauv lub ob txhais tes ntawm high-qeb duas ua hauj lwm thiab muaj nplua nwj businessmen.

Txij li thaum 1931, Parker tau tsim thiab tso tawm ib tug tshiab number case Quink, uas yog yooj yim ntxuav tam sim ntawd nrog nws. Stylus muab ib tug zoo huv si thiab zoo nkauj kab nyob rau hauv tag nrho cov tej yam kev mob. Qhov no rollerball cwj mem yuav tsis tsis koj tsis muaj cua sov, tsis txias, thiab txawm nyob rau hauv lub khiav, koj ua ib qho kev nkag rau hauv tej yam kev mob.

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