{"id":1453,"date":"2020-02-22T03:30:57","date_gmt":"2020-02-22T03:30:57","guid":{"rendered":"https:\/\/www.cftungsten.com\/?p=1453"},"modified":"2020-02-22T03:30:57","modified_gmt":"2020-02-22T03:30:57","slug":"the-factors-of-tungsten-carbide-rod-performance","status":"publish","type":"post","link":"https:\/\/www.cftungsten.com\/cs\/faktory-vykonu-tyce-z-karbidu-wolframu\/","title":{"rendered":"Faktory v\u00fdkonu karbidov\u00e9 ty\u010de wolframu"},"content":{"rendered":"
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Tvrdost<\/h3><\/span>
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Tvrdost materi\u00e1lu je definov\u00e1na jako schopnost bojovat proti tvrd\u00e9mu vtla\u010den\u00ed do povrchu p\u0159edm\u011btu, p\u0159edev\u0161\u00edm pomoc\u00ed m\u011b\u0159en\u00ed Rockwella a Vickerse. Proto\u017ee se principy test\u016f podle Vickerse a Rockwella li\u0161\u00ed, je t\u0159eba p\u0159i p\u0159echodu z jednoho syst\u00e9mu na druh\u00fd postupovat opatrn\u011b.<\/p>\n<\/div><\/div><\/div>

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Donucovac\u00ed s\u00edla<\/h3><\/span>
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Koercitivn\u00ed s\u00edla je m\u00edrou zbytkov\u00e9ho magnetismu v hysterezn\u00ed smy\u010dce, kdy\u017e je kobaltov\u00e9 (Co) pojivo v kvalit\u011b slinut\u00e9ho karbidu zmagnetizov\u00e1no a pot\u00e9 demagnetizov\u00e1no. Lze jej pou\u017e\u00edt k posouzen\u00ed stavu organizace slitiny. \u010c\u00edm jemn\u011bj\u0161\u00ed je velikost zrna karbidov\u00e9 f\u00e1ze, t\u00edm vy\u0161\u0161\u00ed bude hodnota koercitivn\u00ed s\u00edly.<\/p>\n<\/div><\/div><\/div>

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Magnetick\u00e1 saturace<\/h3><\/span>
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Magnetick\u00e1 saturace je pom\u011br magnetick\u00e9 intenzity ke kvalit\u011b. M\u011b\u0159en\u00ed magnetick\u00e9 saturace na kobaltov\u00e9 (Co) pojivov\u00e9 f\u00e1zi ve slinut\u00e9m karbidu se pou\u017e\u00edv\u00e1 v pr\u016fmyslu k hodnocen\u00ed slo\u017een\u00ed. Hodnoty n\u00edzk\u00e9 magnetick\u00e9 saturace indikuj\u00ed n\u00edzkou hladinu uhl\u00edku a\/nebo p\u0159\u00edtomnost karbidu EtaPhase. Hodnoty vysok\u00e9 magnetick\u00e9 saturace indikuj\u00ed p\u0159\u00edtomnost \u201evoln\u00e9ho uhl\u00edku\u201c nebo grafitu<\/p>\n<\/div><\/div><\/div>

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Hustota<\/h3><\/span>
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Hustota (m\u011brn\u00e1 hmotnost) materi\u00e1lu je pom\u011br jeho hmotnosti k jeho objemu. M\u011b\u0159\u00ed se pomoc\u00ed techniky vytla\u010dov\u00e1n\u00ed vody. Hustota slinut\u00e9ho karbidu kles\u00e1 line\u00e1rn\u011b se zvy\u0161uj\u00edc\u00edm se obsahem kobaltu u t\u0159\u00eddy W-Co.<\/p>\n<\/div><\/div><\/div>

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P\u0159\u00ed\u010dn\u00e9 rupturn\u00ed nap\u011bt\u00ed<\/h3><\/span>
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P\u0159\u00ed\u010dn\u00e9 lomov\u00e9 nap\u011bt\u00ed (TRS) je schopnost materi\u00e1lu odol\u00e1vat ohybu, m\u011b\u0159en\u00e1 v bod\u011b lomu materi\u00e1lu p\u0159i standardn\u00edm t\u0159\u00edbodov\u00e9m testu ohybu.<\/p>\n<\/div><\/div><\/div>

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Metalografick\u00fd<\/h3><\/span>
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Kobaltov\u00e1 f\u00e1ze se po slinov\u00e1n\u00ed nav\u00e1\u017ee, p\u0159ebytek kobaltu v ur\u010dit\u00e9 oblasti struktury vytvo\u0159\u00ed kabaltov\u00fd baz\u00e9n; pokud je bindinov\u00e1 f\u00e1ze ne\u00fapln\u011b p\u0159ilnav\u00e1, vytvo\u0159\u00ed se n\u011bjak\u00e9 zbytkov\u00e9 p\u00f3ry. Kobaltov\u00e9 baz\u00e9ny a por\u00e9znost lze detekovat pomoc\u00ed metalografick\u00e9ho mikroskopu.<\/p>\n<\/div><\/div><\/div>

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P\u00f3rovitost ISO4505<\/h3><\/span>
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Karbid wolframu se vyr\u00e1b\u00ed pr\u00e1\u0161kovou metalurgi\u00ed a f\u00e1ze kovov\u00e9ho pojiva se pou\u017e\u00edv\u00e1 ke spojen\u00ed f\u00e1ze karbidu. Existuje tedy takov\u00e1 mo\u017enost: Mal\u00e9 mno\u017estv\u00ed zbytk\u016f je p\u0159\u00edtomno v mikrostruktu\u0159e wolframu Slinut\u00fd karbid v d\u016fsledku ne\u00fapln\u00e9ho slinov\u00e1n\u00ed. Objem p\u00f3r\u016f p\u0159\u00edtomn\u00fdch v materi\u00e1lu se vyhodnot\u00ed standardn\u00edm srovn\u00e1vac\u00edm postupem. Ten rozd\u011bluje rozsah rozm\u011br\u016f a rozlo\u017een\u00ed p\u00f3r\u016f do n\u011bkolika kategori\u00ed: P\u00f3r pod 10 mikron\u016f se naz\u00fdv\u00e1 prorozita \u201cA\u201d, P\u00f3r 10-25 mikron\u016f se naz\u00fdv\u00e1 porozita\u201dB\u201d p\u00f3ry v\u011bt\u0161\u00edch rozm\u011br\u016f se m\u011b\u0159\u00ed a klasifikov\u00e1ny samostatn\u011b. Existence p\u00f3r\u016f ve slinut\u00e9m karbidu bude m\u00edt nep\u0159\u00edzniv\u00fd vliv na jeho mechanick\u00e9 vlastnosti.<\/p>\n<\/div><\/div><\/div>

V\u011bd\u011bt, jak vyr\u00e1b\u011bt Karbidov\u00e1 ty\u010d wolframu<\/a>.<\/p>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":898,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1453","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.cftungsten.com\/cs\/wp-json\/wp\/v2\/posts\/1453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cftungsten.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cftungsten.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cftungsten.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cftungsten.com\/cs\/wp-json\/wp\/v2\/comments?post=1453"}],"version-history":[{"count":0,"href":"https:\/\/www.cftungsten.com\/cs\/wp-json\/wp\/v2\/posts\/1453\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cftungsten.com\/cs\/wp-json\/wp\/v2\/media\/898"}],"wp:attachment":[{"href":"https:\/\/www.cftungsten.com\/cs\/wp-json\/wp\/v2\/media?parent=1453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cftungsten.com\/cs\/wp-json\/wp\/v2\/categories?post=1453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cftungsten.com\/cs\/wp-json\/wp\/v2\/tags?post=1453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}