{"id":22152,"date":"2020-11-13T10:17:42","date_gmt":"2020-11-13T10:17:42","guid":{"rendered":"http:\/\/pokus.jansvoboda.cz\/?p=22152"},"modified":"2020-11-26T14:19:23","modified_gmt":"2020-11-26T14:19:23","slug":"priklad-aplikace-technologie-git-vyroba-zpetneho-zrcatka","status":"publish","type":"post","link":"https:\/\/kvalitnivystrik.cz\/index.php\/2020\/11\/13\/priklad-aplikace-technologie-git-vyroba-zpetneho-zrcatka\/","title":{"rendered":"P\u0159\u00edklad aplikace technologie GIT: v\u00fdroba zp\u011btn\u00e9ho zrc\u00e1tka"},"content":{"rendered":"\n
P\u0159\u00edklad aplikace technologie GIT: v\u00fdroba zp\u011btn\u00e9ho zrc\u00e1tka<\/h6>\n\n\n\n

N\u00e1sleduj\u00edc\u00ed rozbor ilustruje, jak lze aplikac\u00ed technologie GIT vy\u0159e\u0161it dv\u011b v\u00fdznamn\u00e9 komplikace p\u0159i v\u00fdrob\u011b. <\/p>\n\n\n\n

1) Prvn\u00ed problematick\u00fd aspekt spo\u010d\u00edv\u00e1 v rozd\u00edln\u00e9 tlou\u0161\u0165ce st\u011bn vlivem r\u016fzn\u00fdch v\u00fdstupk\u016f. P\u0159i r\u016fzn\u00e9 mocnosti st\u011bn d\u00edlu hroz\u00ed vznik propadlin.
<\/strong>Technologie GIT umo\u017e\u0148uje eliminovat propadliny veden\u00edm stla\u010den\u00e9ho dus\u00edku tak, aby do\u0161lo ke stla\u010den\u00ed polymeru ve vystupuj\u00edc\u00edch \u010d\u00e1stech. Byly navr\u017eeny speci\u00e1ln\u00ed rozv\u00e1d\u011bc\u00ed kan\u00e1lky pro p\u0159\u00edvod plynu z trysky p\u0159\u00edmo k m\u00edst\u016fm vy\u017eaduj\u00edc\u00edm zlep\u0161en\u00ed dotlaku. Na z\u00e1klad\u011b detailn\u00ed po\u010d\u00edta\u010dov\u00e9 anal\u00fdzy jsme stanovili optim\u00e1ln\u00ed um\u00edst\u011bn\u00ed trysek a vhodnou geometrii kan\u00e1lk\u016f pro zaji\u0161t\u011bn\u00ed vyv\u00e1\u017een\u00e9ho pln\u011bn\u00ed plastem a nejefektivn\u011bj\u0161\u00edho dotlaku.<\/p>\n\n\n\n

2) Dal\u0161\u00ed komplikac\u00ed je velk\u00e1 tlou\u0161\u0165ka d\u00edlu v m\u00edst\u011b jeho uchycen\u00ed.
<\/strong>Pokud bychom nepou\u017eili technologii GIT, koncov\u00fd v\u00fdrobek by se musel koncipovat jako dva se\u0161roubovateln\u00e9 d\u00edly, co\u017e by s sebou neslo podstatn\u011b vy\u0161\u0161\u00ed n\u00e1klady ne\u017e vst\u0159ikov\u00e1n\u00ed jednoho kusu. Jednou z v\u00fdhod technologie GIT je pr\u00e1v\u011b mo\u017enost vyr\u00e1b\u011bt \u010d\u00e1ste\u010dn\u011b silnost\u011bnn\u00e9 v\u00fdlisky s c\u00edlen\u00fdm dotla\u010den\u00edm s pomoc\u00ed plynu.<\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n

D\u00edky aplikaci plynu lze snadno regulovat tlou\u0161\u0165ku st\u011bn a zkr\u00e1tit dobu cyklu p\u0159i sou\u010dasn\u00e9m sn\u00ed\u017een\u00ed hmotnosti d\u00edlu. <\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n

K vy\u0159e\u0161en\u00ed dvou hlavn\u00edch problematick\u00fdch aspekt\u016f, tedy odli\u0161nost\u00ed v tlou\u0161\u0165ce<\/strong> (n\u00e1litky pro uchycen\u00ed mechanismu zrc\u00e1tka) a velk\u00e9 tlou\u0161\u0165ky d\u00edlu<\/strong> (masivn\u00ed, zpev\u0148uj\u00edc\u00ed okraje) ur\u010dit\u00e9 \u010d\u00e1sti d\u00edlu, jsme pou\u017eili dva r\u016fzn\u00e9 technologick\u00e9 postupy GIT: pomal\u00fd pr\u016ftok plynu s dokonalou regulac\u00ed pro prvn\u00ed p\u0159\u00edpad (n\u00e1litky) a rychl\u00fd pr\u016ftok plynu pro druh\u00fd problematick\u00fd aspekt (zes\u00edlen\u00e9 okraje). Bylo nutn\u00e9 zvolit plynovou vst\u0159ikovac\u00ed jednotku schopnou zajistit p\u0159esnou regulaci tlakov\u00e9ho profi lu v n\u011bkolika os\u00e1ch.<\/p>\n\n\n\n

Z\u00e1sadn\u00ed vliv na spolehlivost a stabilitu cel\u00e9ho procesu m\u00e1 v\u00fdb\u011br trysky pro p\u0159\u00edvod plynu<\/strong>. P\u016fvodn\u011b se plyn vst\u0159ikoval standardn\u00ed tryskou se statick\u00fdm mechanismem, kde plyn proud\u00ed \u0161t\u011brbinou o pr\u016fm\u011bru 0,02 \u2013 0,03 mm. Limituj\u00edc\u00edm faktorem byla nutnost \u010dast\u00e9ho \u010di\u0161t\u011bn\u00ed t\u00e9to trysky. Pot\u00e9 jsme nam\u00edsto standardn\u00edch trysek pou\u017eili plynovou jehlu od firmy Ermanno Balzi<\/strong><\/a>. Pohybliv\u00fd kol\u00edk s konick\u00fdm sedlem zaji\u0161\u0165uje vysokou pr\u016ftokovou rychlost plynu a sou\u010dasn\u011b m\u00e1 samo\u010distic\u00ed efekt, co\u017e v\u00fdznamn\u011b zjednodu\u0161uje a hlavn\u011b zlev\u0148uje \u00fadr\u017ebu.<\/p>\n\n\n\n

Jehla pro vyfukov\u00e1n\u00ed plast\u016f od firmy BALZI<\/a><\/strong> p\u0159edstavuje spolehliv\u00e9 a \u00fa\u010dinn\u00e9 \u0159e\u0161en\u00ed pro n\u00edzk\u00fd i vysok\u00fd tlak.<\/p>\n\n\n\n

D\u00edky dynamick\u00e9mu charakteru plynov\u00fdch trysek bylo mo\u017en\u00e9 sn\u00ed\u017eit zmetkovitost p\u0159i v\u00fdrob\u011b o neuv\u011b\u0159iteln\u00fdch 80 %. Sou\u010dasn\u011b o 23 % vzrostla produktivita v\u00fdroby, a to d\u00edky absenci \u00fadr\u017ebov\u00fdch odst\u00e1vek ve v\u00fdrob\u011b.<\/p>\n\n\n\n

V\u00fdsledkem jsou perfektn\u00ed d\u00edly<\/strong> a levn\u011bj\u0161\u00ed v\u00fdroba<\/strong>. Uveden\u00fd p\u0159\u00edklad ukazuje, \u017ee spolupr\u00e1ce s men\u0161\u00edmi, specializovan\u00fdmi firmami m\u016f\u017ee velk\u00e9 producenty plastov\u00fdch d\u00edl\u016f posunout na novou \u00farove\u0148 efektivit v\u00fdroby a ziskovosti.<\/p>\n\n\n\n

V\u00edce informac\u00ed o nov\u00e9 jehle pro vyfukov\u00e1n\u00ed plast\u016f naleznete zde. <\/strong><\/a><\/p>\n\n\n\n

P\u0159e\u010dt\u011bte si tak\u00e9 n\u00e1\u0161 \u010dl\u00e1nek o technologii vst\u0159ikov\u00e1n\u00ed plast\u016f s podporou plynu. <\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

P\u0159\u00edklad aplikace technologie GIT: v\u00fdroba zp\u011btn\u00e9ho zrc\u00e1tka N\u00e1sleduj\u00edc\u00ed rozbor ilustruje, jak lze aplikac\u00ed technologie GIT vy\u0159e\u0161it dv\u011b v\u00fdznamn\u00e9 komplikace p\u0159i v\u00fdrob\u011b.  1) Prvn\u00ed problematick\u00fd aspekt spo\u010d\u00edv\u00e1 v rozd\u00edln\u00e9 tlou\u0161\u0165ce st\u011bn vlivem r\u016fzn\u00fdch v\u00fdstupk\u016f. P\u0159i r\u016fzn\u00e9 mocnosti st\u011bn d\u00edlu hroz\u00ed vznik propadlin.Technologie GIT umo\u017e\u0148uje eliminovat propadliny veden\u00edm stla\u010den\u00e9ho dus\u00edku tak, aby do\u0161lo ke stla\u010den\u00ed polymeru ve vystupuj\u00edc\u00edch \u010d\u00e1stech. Byly navr\u017eeny speci\u00e1ln\u00ed rozv\u00e1d\u011bc\u00ed kan\u00e1lky pro p\u0159\u00edvod plynu z trysky p\u0159\u00edmo k m\u00edst\u016fm vy\u017eaduj\u00edc\u00edm zlep\u0161en\u00ed dotlaku. Na z\u00e1klad\u011b detailn\u00ed po\u010d\u00edta\u010dov\u00e9 anal\u00fdzy jsme stanovili optim\u00e1ln\u00ed um\u00edst\u011bn\u00ed trysek a vhodnou geometrii kan\u00e1lk\u016f pro zaji\u0161t\u011bn\u00ed vyv\u00e1\u017een\u00e9ho pln\u011bn\u00ed plastem a nejefektivn\u011bj\u0161\u00edho dotlaku. 2) Dal\u0161\u00ed komplikac\u00ed je velk\u00e1 tlou\u0161\u0165ka d\u00edlu v m\u00edst\u011b jeho uchycen\u00ed.Pokud bychom nepou\u017eili technologii GIT, koncov\u00fd v\u00fdrobek by se musel koncipovat jako dva se\u0161roubovateln\u00e9 d\u00edly, co\u017e by s sebou neslo podstatn\u011b vy\u0161\u0161\u00ed n\u00e1klady ne\u017e vst\u0159ikov\u00e1n\u00ed jednoho kusu. Jednou z v\u00fdhod technologie GIT je pr\u00e1v\u011b mo\u017enost vyr\u00e1b\u011bt \u010d\u00e1ste\u010dn\u011b silnost\u011bnn\u00e9 v\u00fdlisky s c\u00edlen\u00fdm dotla\u010den\u00edm s pomoc\u00ed plynu. D\u00edky aplikaci plynu lze snadno regulovat tlou\u0161\u0165ku st\u011bn a zkr\u00e1tit dobu cyklu p\u0159i sou\u010dasn\u00e9m sn\u00ed\u017een\u00ed hmotnosti d\u00edlu.  K vy\u0159e\u0161en\u00ed dvou hlavn\u00edch problematick\u00fdch aspekt\u016f, tedy odli\u0161nost\u00ed v tlou\u0161\u0165ce (n\u00e1litky pro uchycen\u00ed mechanismu zrc\u00e1tka) a velk\u00e9 tlou\u0161\u0165ky d\u00edlu (masivn\u00ed, zpev\u0148uj\u00edc\u00ed okraje) ur\u010dit\u00e9 \u010d\u00e1sti d\u00edlu, jsme pou\u017eili dva r\u016fzn\u00e9 technologick\u00e9 postupy GIT: pomal\u00fd pr\u016ftok plynu s dokonalou regulac\u00ed pro prvn\u00ed…<\/p>\n","protected":false},"author":1,"featured_media":22153,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[34,41],"tags":[65],"_links":{"self":[{"href":"https:\/\/kvalitnivystrik.cz\/index.php\/wp-json\/wp\/v2\/posts\/22152"}],"collection":[{"href":"https:\/\/kvalitnivystrik.cz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kvalitnivystrik.cz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kvalitnivystrik.cz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kvalitnivystrik.cz\/index.php\/wp-json\/wp\/v2\/comments?post=22152"}],"version-history":[{"count":2,"href":"https:\/\/kvalitnivystrik.cz\/index.php\/wp-json\/wp\/v2\/posts\/22152\/revisions"}],"predecessor-version":[{"id":22496,"href":"https:\/\/kvalitnivystrik.cz\/index.php\/wp-json\/wp\/v2\/posts\/22152\/revisions\/22496"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kvalitnivystrik.cz\/index.php\/wp-json\/wp\/v2\/media\/22153"}],"wp:attachment":[{"href":"https:\/\/kvalitnivystrik.cz\/index.php\/wp-json\/wp\/v2\/media?parent=22152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kvalitnivystrik.cz\/index.php\/wp-json\/wp\/v2\/categories?post=22152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kvalitnivystrik.cz\/index.php\/wp-json\/wp\/v2\/tags?post=22152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}