{"id":500,"date":"2022-10-24T18:05:24","date_gmt":"2022-10-24T10:05:24","guid":{"rendered":"https:\/\/plastic-machines.org\/?post_type=info&p=500"},"modified":"2026-08-21T11:29:25","modified_gmt":"2026-08-21T03:29:25","slug":"how-to-solve-the-problem-of-black-spots-on-plastic-pellets","status":"publish","type":"info","link":"https:\/\/plastic-machines.org\/pt\/info\/how-to-solve-the-problem-of-black-spots-on-plastic-pellets\/","title":{"rendered":"Como resolver o problema das manchas pretas em pellets de pl\u00e1stico?"},"content":{"rendered":"

No processo de granula\u00e7\u00e3o de pl\u00e1stico, \u00e9 um problema relativamente comum encontrar pontos pretos nos gr\u00e2nulos. \u00c9 um problema da m\u00e1quina de gr\u00e2nulos de pl\u00e1stico<\/a>, um problema de mat\u00e9rias-primas ou outros fatores que levam a tal fen\u00f3meno? Na verdade, o problema dos pontos pretos no processo de granula\u00e7\u00e3o \u00e9 um fen\u00f3meno de falha comum, especialmente nos gr\u00e2nulos de cor clara mais \u00f3bvio. Ent\u00e3o, como podemos melhorar este problema?<\/p>

\"manchas
manchas pretas em pellets de pl\u00e1stico<\/figcaption><\/figure> <\/div>

Essas manchas pretas s\u00e3o a deteriora\u00e7\u00e3o t\u00e9rmica pl\u00e1stica residual da peletizadora de pl\u00e1stico ap\u00f3s o carboneto, a fim de garantir a qualidade dos pellets de pl\u00e1stico, a equipe deve limpar frequentemente o carboneto da m\u00e1quina.<\/p>

Use harder plastic or its return material and white mineral oil for cleaning, and the temperature should be appropriately increased by 10~15\u00b0C. <\/p>

At this time, the plasticizing ability of the small extruder should be considered. For large and medium-sized extruders that can plasticize ultra-high molecular weight plastics, they can be cleaned with ultra-high molecular weight plastics or their return materials and white mineral oil. <\/p>

Because the hardness of ultra-high molecular weight plastics is better, and when the temperature is high, the cleaning object will be softened, so that it becomes easy to fall off, which is beneficial to the carbides being carried out by the plastic melt.<\/p>

\"m\u00e1quina<\/figure> <\/div>

During the cleaning process, the speed of the plastic pellet machine can be repeatedly switched between low speed and high speed. If there is still a spare motor load, you can repeatedly stop and restart the extruder several times during the operation, which can improve the cleaning effect. <\/p>

When the carbide in the plastic melt is obviously reduced, gradually adjust to the appropriate temperature, then the normal production.<\/p>","protected":false},"excerpt":{"rendered":"

In the process of plastic granulation, it is a relatively common problem to encounter black spots on the pellets. Is it the problem of plastic pellet machine, the problem of raw materials, or other factors that lead to such a phenomenon? In fact, the problem of black spots in the granulation process is a common […]<\/p>\n","protected":false},"author":1,"featured_media":477,"parent":0,"template":"","tags":[85],"info-type":[11],"class_list":["post-500","info","type-info","status-publish","has-post-thumbnail","hentry","tag-granule-knowledge","info-type-news"],"taxonomy_info":{"post_tag":[{"value":85,"label":"granule knowledge"}],"info-type":[{"value":11,"label":"News"}]},"featured_image_src_large":["https:\/\/plastic-machines.org\/wp-content\/uploads\/2022\/06\/plastic-pellet-making-machine1.webp",720,540,false],"author_info":{"display_name":"Ella","author_link":"https:\/\/plastic-machines.org\/pt\/author\/admin\/"},"comment_info":"","_links":{"self":[{"href":"https:\/\/plastic-machines.org\/pt\/wp-json\/wp\/v2\/info\/500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/plastic-machines.org\/pt\/wp-json\/wp\/v2\/info"}],"about":[{"href":"https:\/\/plastic-machines.org\/pt\/wp-json\/wp\/v2\/types\/info"}],"author":[{"embeddable":true,"href":"https:\/\/plastic-machines.org\/pt\/wp-json\/wp\/v2\/users\/1"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/plastic-machines.org\/pt\/wp-json\/wp\/v2\/media\/477"}],"wp:attachment":[{"href":"https:\/\/plastic-machines.org\/pt\/wp-json\/wp\/v2\/media?parent=500"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/plastic-machines.org\/pt\/wp-json\/wp\/v2\/tags?post=500"},{"taxonomy":"info-type","embeddable":true,"href":"https:\/\/plastic-machines.org\/pt\/wp-json\/wp\/v2\/info-type?post=500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}