{"id":1596,"date":"2019-05-22T02:47:32","date_gmt":"2019-05-22T02:47:32","guid":{"rendered":"http:\/\/www.meetyoucarbide.com\/single-post-the-3-main-forming-agents-in-production-of-wc-and-their-usage\/"},"modified":"2020-05-04T13:12:08","modified_gmt":"2020-05-04T13:12:08","slug":"the-3-main-forming-agents-in-production-of-wc-and-their-usage","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/tr\/wc-uretimindeki-3-ana-olusturucu-ajanlar-ve-kullanimlari\/","title":{"rendered":"WC \u00dcretiminde 3 Ana \u015eekillendirme Maddesi ve Kullan\u0131m\u0131"},"content":{"rendered":"
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Semente karb\u00fcr, y\u00fcksek bas\u0131n\u00e7 dayan\u0131m\u0131, y\u00fcksek sertlik ve y\u00fcksek elastisite mod\u00fcl\u00fcne sahip \u00e7\u00f6z\u00fcnmeyen karb\u00fcrlerden olu\u015fur. Tozun presleme s\u0131ras\u0131nda plastik olarak deforme olmas\u0131 daha zordur. Toz olu\u015fturma \u00f6zelli\u011fini geli\u015ftirmek i\u00e7in, briketleme mukavemeti artt\u0131r\u0131l\u0131r ve s\u0131k\u0131\u015ft\u0131rma kolayla\u015ft\u0131r\u0131l\u0131r ve \u015fekillendirmeden \u00f6nce toz malzemeye bir \u015fekillendirme maddesi eklenir.<\/div>\n
Bir ara eksipiyan olarak, herhangi bir kal\u0131nt\u0131 \u00fcr\u00fcn i\u00e7in bir kalite tehlikesine neden olaca\u011f\u0131ndan, \u015fekillendirme ajan\u0131 gam giderme a\u015famas\u0131 s\u0131ras\u0131nda tamamen uzakla\u015ft\u0131r\u0131lmal\u0131d\u0131r. Y\u00fcksek kaliteli semente karb\u00fcr \u00fcr\u00fcnlerinin \u00fcretimi, ala\u015f\u0131mdaki toplam karbonu s\u0131k\u0131 bir \u015fekilde kontrol etmelidir. Semente karb\u00fcr \u00fcr\u00fcnlerinin toplam karbon i\u00e7eri\u011fini etkileyen bir\u00e7ok fakt\u00f6r olmas\u0131na ra\u011fmen, tungsten karb\u00fcr\u00fcn hammaddesinin istikrarl\u0131 kalitesi durumunda, \u015fekillendirme maddesinin uygulanmas\u0131n\u0131n \u00fcr\u00fcn\u00fcn toplam karbonu \u00fczerindeki etkisi \u00e7ok \u00f6nemli bir husustur. .<\/div>\n
Bu nedenle, \u015fekillendirici ajan\u0131n performans\u0131, i\u015flenmemi\u015f par\u00e7an\u0131n ve nihai sinterlenmi\u015f \u00fcr\u00fcn\u00fcn \u00f6zelliklerini do\u011frudan etkileyen kilit bir fakt\u00f6rd\u00fcr.<\/div>\n
Ankete g\u00f6re, baz\u0131 semente karb\u00fcr \u00fcreticileri ge\u00e7mi\u015fte kal\u0131plama maddesi olarak sentetik re\u00e7ineler, dekstrin, ni\u015fasta, metil alkol ve sel\u00fcloz kulland\u0131lar. \u00d6rne\u011fin, Do\u011fu Almanya 48% ila 59% ceresin ve sert parafin kulland\u0131. Parafin ya\u011f\u0131 ile bir kar\u0131\u015f\u0131m. Amerika Birle\u015fik Devletleri General Electric Company, ni\u015fasta, arap kau\u00e7u\u011fu ve sentetik re\u00e7ineler kullanm\u0131\u015ft\u0131r. \u0130ngiltere'de suda \u00e7\u00f6z\u00fcn\u00fcr lif ve polipropilen desilamin kullan\u0131lmaktad\u0131r. Baz\u0131 \u00fcreticiler ayr\u0131ca y\u00fczey aktif maddeler eklemi\u015ftir.<\/div>\n
Geli\u015fmi\u015f \u00fcretim ekipman\u0131 ve y\u00fcksek derecede otomasyon nedeniyle, yabanc\u0131 semente karb\u00fcr \u00fcreticileri, temel olarak parafin ve PEG olan boru hatt\u0131 kar\u0131\u015ft\u0131rma ekipman\u0131, otomatik y\u00fcksek hassasiyetli presler ve yabanc\u0131 semente karb\u00fcr \u015fekillendirme ajanlar\u0131 kullan\u0131r. Bilyal\u0131 de\u011firmen ortam\u0131n\u0131n gam\u0131 giderilir ve kau\u00e7uk atmosfere sahip tek bir f\u0131r\u0131na sinterlenir. \u00c7ok az tutkal olu\u015fturucu madde vard\u0131r.<\/div>\n
\u015eu anda, yerli semente karb\u00fcr \u00fcreticileri taraf\u0131ndan yayg\u0131n olarak kullan\u0131lan \u015fekillendirme maddeleri \u015funlard\u0131r: kau\u00e7uk, parafin ve polietilen glikol (PEG). Teknolojiyi tan\u0131tan yabanc\u0131 \u00fcreticilere ba\u011fl\u0131 olarak kullan\u0131m s\u00fcresi \u00fcreticiden \u00fcreticiye de\u011fi\u015fiklik g\u00f6stermektedir. Sandvik teknolojisini tan\u0131tan \u00fcreticiler genellikle PEG'yi \u015fekillendirme maddesi ve sprey kurutma olarak kullan\u0131r. Baz\u0131lar\u0131 \u015fekillendirme maddesi olarak parafin kullan\u0131r ve ayr\u0131ca sprey kurutma i\u015flemi kullan\u0131r. KOB\u0130'ler temel olarak kau\u00e7uk teknolojisini kullan\u0131r ve \u00e7e\u015fitli \u015fekillendirme ajanlar\u0131n\u0131n kendi avantajlar\u0131 ve dezavantajlar\u0131 vard\u0131r.<\/div>\n

Kau\u00e7uk \u015fekillendirme maddesi<\/h2>\n

\"\"<\/p>\n

In the late 1950s and early 1960s, the sodium butadiene rubber used in China’s cemented carbide industry was imported from the Soviet Union, and the rubber quality was stable. Later, due to changes in the situation, the use of Lanzhou-made synthetic sodium butadiene rubber was used.<\/div>\n
\u00dcretim s\u00fcreci teknolojisi, ekipman ve di\u011fer nedenlerden dolay\u0131 kau\u00e7uk kalite istikrar\u0131 zay\u0131ft\u0131r. Sodyum b\u00fctadien kau\u00e7u\u011fu benzinle \u00e7\u00f6z\u00fcld\u00fckten sonra jel daha fazlad\u0131r, \u00e7\u00f6zelti ask\u0131ya al\u0131n\u0131r, filtrasyon zordur, k\u00fcl i\u00e7eri\u011fi ve safs\u0131zl\u0131k i\u00e7eri\u011fi y\u00fcksektir, bu da ala\u015f\u0131m\u0131n normal \u00fcretimini etkiler.<\/div>\n

Kau\u00e7uk \u00e7\u00f6z\u00fcc\u00fc iyi \u015fekillendirilebilirli\u011fe sahiptir ve karma\u015f\u0131k bir \u015fekle ve b\u00fcy\u00fck bir hacme sahip bir \u00fcr\u00fcn\u00fc bast\u0131rabilir ve kompakt\u0131n \u00e7atlaklara neden olma olas\u0131l\u0131\u011f\u0131 daha d\u00fc\u015f\u00fckt\u00fcr. Ancak dezavantaj, k\u00fcl\u00fcn y\u00fcksek olmas\u0131, kalan karbonun y\u00fcksek olmas\u0131, karbon kontrol\u00fcn\u00fcn hassasiyetinin zor olmas\u0131, vakumun \u00e7\u0131kar\u0131lmas\u0131n\u0131n kolay olmamas\u0131, \u00fcr\u00fcn kalitesinin karars\u0131z olmas\u0131 ve p\u00fcsk\u00fcrtmeli kurutma i\u015flemi i\u00e7in uygun olmamas\u0131d\u0131r.<\/p>\n

parafin olu\u015fturucu ajan<\/h2>\n

\"\"<\/p>\n

Paraffin is refined from petroleum. Paraffin is a mixture of various hydrocarbons. A small amount of liquid “impurities” are present in the form of oil. The solid component is a saturated alkane. The nature of paraffin is, in the final analysis, determined by its chemical composition, whether they are linear, branched or cyclic. Paraffin wax can be classified into: paraffin wax, microcrystalline wax, montan wax, vegetable wax, animal wax, synthetic wax. There are dozens of kinds of total varieties. The molecular weight, structure, properties and uses of each variety are different.<\/div>\n
Genel olarak, semente karb\u00fcrler i\u00e7in parafin mumlar\u0131, esas olarak birka\u00e7 lineer ve lineer molek\u00fcle ve az say\u0131da aromatik hidrokarbona sahip normal parafinlerden olu\u015fur. Molek\u00fcler a\u011f\u0131rl\u0131k aral\u0131\u011f\u0131 360-540, erime noktas\u0131 42-70 derece, etanolde az \u00e7\u00f6z\u00fcn\u00fcr. Mikrokristalin mumun molek\u00fcler a\u011f\u0131rl\u0131\u011f\u0131 580-700'd\u00fcr ve \u00e7o\u011funlukla bir\u00e7ok siklik hidrokarbon bile\u015fi\u011fi i\u00e7eren dall\u0131 zincirli bir molek\u00fcld\u00fcr. Parafin mumu k\u0131r\u0131lgand\u0131r. Mikrokristalin mum daha serttir, daha esnektir, daha y\u00fcksek gerilme mukavemetine ve erime noktas\u0131na sahiptir ve daha y\u00fcksek yap\u0131\u015fkanl\u0131\u011fa sahiptir. Doymu\u015f do\u011frusal bir hidrokarbondur. Y\u00fcksek s\u0131cakl\u0131kta kal\u0131nt\u0131 b\u0131rakmadan tamamen buharla\u015fabilir. Bir vakumda \u00e7\u0131kar\u0131lmas\u0131 da kolayd\u0131r. Karbon miktar\u0131n\u0131 kontrol etme zorlu\u011fu azalt\u0131l\u0131r, ala\u015f\u0131m\u0131n karbon miktar\u0131n\u0131n do\u011frulu\u011fu iyile\u015ftirilir, ancak viskozite d\u00fc\u015f\u00fckt\u00fcr, elde edilen kompakt d\u00fc\u015f\u00fck mukavemete sahiptir, elastik art etki b\u00fcy\u00fckt\u00fcr ve konsantre k\u0131s\u0131mda kolayca \u00e7atlaklar olu\u015fur. stres ve \u015fekle basmak zordur. Daha karma\u015f\u0131k \u00fcr\u00fcnler ve kompaktl\u0131k k\u0131r\u0131lgand\u0131r ve k\u00f6\u015feden d\u00fc\u015fmesi kolayd\u0131r.<\/div>\n

Suda \u00e7\u00f6z\u00fcn\u00fcr polimer olu\u015fturucu ajan<\/h2>\n

\"\"<\/p>\n

PEG (polietilen glikol), sentetik bir mum olan suda \u00e7\u00f6z\u00fcn\u00fcr bir polimerdir. Etilen oksidin su veya etilen glikol ile a\u015famal\u0131 olarak eklenmesiyle yap\u0131lan molek\u00fcler a\u011f\u0131rl\u0131k 200-20000'dir, suda tamamen \u00e7\u00f6z\u00fcn\u00fcr, oda s\u0131cakl\u0131\u011f\u0131nda etanolde d\u00fc\u015f\u00fck \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011fe (1%'den az) sahiptir ve bir\u00e7ok maddeyle uyumludur. Polaritesi y\u00fcksek, toksik olmayan ve tahri\u015f edici olmayan maddelerle en y\u00fcksek uyumlulu\u011fu g\u00f6sterir. PEG'nin \u015fekillendirilebilirli\u011fi parafin mumuna e\u015fde\u011ferdir ve daha az karbon kal\u0131nt\u0131s\u0131 vard\u0131r. P\u00fcsk\u00fcrterek kurutma i\u015flemine uygun, g\u00fcvenli ve \u00e7evre dostu bir \u015fekillendirici ajan oldu\u011fu s\u00f6ylenebilir. Bununla birlikte, PEG a\u011f\u0131r bir \u015fekilde emer ve molek\u00fcler a\u011f\u0131rl\u0131\u011f\u0131n artmas\u0131yla nem emme kapasitesi azal\u0131r. \u00c7al\u0131\u015fma ortam\u0131n\u0131n nem ve s\u0131cakl\u0131k gereksinimleri son derece \u015fiddetlidir. Nem emildikten sonra toz sertle\u015fir ve pres \u00fczerinde y\u00fcksek bas\u0131n\u00e7 gerektiren presleme bas\u0131nc\u0131 artar. Ek olarak, baz\u0131 karma\u015f\u0131k \u00fcr\u00fcnler olu\u015fturmak zordur.<\/div>\n
Ger\u00e7ek \u00fcretimde kar\u015f\u0131la\u015ft\u0131rma \u00dc\u00e7 bi\u00e7imlendirme maddesinin \u00f6zelliklerini kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in, bi\u00e7imlendirme maddeleri olarak \u00fc\u00e7 parti sodyum b\u00fctadien kau\u00e7u\u011fu, parafin mumu ve PEG kullan\u0131ld\u0131 ve temel bile\u015fim WC-8% Co idi. K\u00f6r, k\u00f6re preslendi. ayn\u0131 tek a\u011f\u0131rl\u0131\u011fa g\u00f6re ve daha sonra vakumlu ayr\u0131\u015ft\u0131rma ile sinterlenir. kar\u015f\u0131la\u015ft\u0131rma i\u00e7in metalografik ve fiziksel \u00f6zellikler elde etmek.<\/div>\n

\"\"<\/p>\n

\u015eekillendirme ajanlar\u0131 olarak parafin ve PEG kullanan numuneler, artan mukavemete ve azalt\u0131lm\u0131\u015f manyetik \u00f6zelliklere sahiptir. Bu, semente karb\u00fcr madencili\u011fi i\u00e7in \u00e7ok a\u00e7\u0131k bir avantajd\u0131r. Ayn\u0131 zamanda, metalografik foto\u011fraf\u0131n g\u00f6rsel analizinden, parafin ve PEG metal fazlar\u0131, kau\u00e7uk olu\u015fturan ajandan daha muntazamd\u0131r, \u00e7\u00fcnk\u00fc parafin ve PEG daha az karbon kal\u0131nt\u0131s\u0131na sahiptir ve kau\u00e7uk kolayca hari\u00e7 tutulmaz ve b\u00fcy\u00fck bir art\u0131k karbon miktar\u0131 yerel tane b\u00fcy\u00fcmesine neden olur. ili\u015fkili.<\/div>\n

\"\"\"\"\"\"<\/p>\n

Sprey gran\u00fclasyon ekipman\u0131n\u0131n olmamas\u0131 nedeniyle, \u015fekillendirme ajan\u0131 olarak parafin ve PEG kar\u0131\u015f\u0131m\u0131, vakumla kurutulur ve daha sonra, malzemelerin kurutulmas\u0131nda PEG agregasyonu gibi kar\u0131\u015f\u0131m\u0131n presleme \u00f6zellikleri \u00fczerinde b\u00fcy\u00fck bir etkisi olan elenir. PEG, ala\u015f\u0131m\u0131n kristal faz\u0131nda topakla\u015fmaya neden olmak i\u00e7in malzemede e\u015fit olmayan bir \u015fekilde da\u011f\u0131lm\u0131\u015ft\u0131r; parafin mumu manuel silme ile zay\u0131f gran\u00fclasyon etkisine sahiptir. Bununla birlikte, numunenin fiziksel \u00f6zellikleri, kau\u00e7uk i\u015fleminde PEG ve parafinin avantajlar\u0131nda hala g\u00f6r\u00fclebilir.<\/div>\n
Ger\u00e7ek \u00fcretimde, kendinden presleme makinesinin b\u00fcy\u00fck \u00f6l\u00e7ekli \u00fcretimi ile ba\u015fa \u00e7\u0131kabilmek i\u00e7in, presleme bas\u0131nc\u0131n\u0131 artt\u0131rmak ve parafinin \u00e7atlama veya d\u00fc\u015fme problemini \u00f6nlemek i\u00e7in tutma s\u00fcresini uzatmak gerekir, bu da azaltacakt\u0131r. emek verimlili\u011fi. Bu nedenle, m\u00fckemmel ak\u0131\u015f \u00f6zelliklerine sahip bir kar\u0131\u015f\u0131m elde etmek i\u00e7in bir p\u00fcsk\u00fcrtmeli kurutma sisteminin kullan\u0131lmas\u0131 bu sorunu iyi bir \u015fekilde \u00e7\u00f6zebilir.<\/div>\n<\/div>\n<\/div>\n

<\/p>","protected":false},"excerpt":{"rendered":"

Cemented carbide is composed of insoluble carbides with high compressive strength, high hardness and high modulus of elasticity. The powder is more difficult to plastically deform during pressing. In order to improve the powder forming property, the briquetting strength is increased, and the compacting is facilitated, and a forming agent is added to the powder…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[79],"tags":[],"class_list":["post-1596","post","type-post","status-publish","format-standard","hentry","category-materials-weekly"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/posts\/1596","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/comments?post=1596"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/posts\/1596\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/media?parent=1596"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/categories?post=1596"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/tags?post=1596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}