{"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\/vi\/info\/how-to-solve-the-problem-of-black-spots-on-plastic-pellets\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 \u0111\u1ed1m \u0111en tr\u00ean vi\u00ean nh\u1ef1a?"},"content":{"rendered":"

Trong qu\u00e1 tr\u00ecnh t\u1ea1o h\u1ea1t nh\u1ef1a, vi\u1ec7c g\u1eb7p ph\u1ea3i c\u00e1c \u0111\u1ed1m \u0111en tr\u00ean h\u1ea1t nh\u1ef1a l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ed5 bi\u1ebfn. \u0110\u00f3 l\u00e0 v\u1ea5n \u0111\u1ec1 c\u1ee7a m\u00e1y s\u1ea3n xu\u1ea5t h\u1ea1t nh\u1ef1a<\/a>, v\u1ea5n \u0111\u1ec1 nguy\u00ean li\u1ec7u th\u00f4, hay c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y? Tr\u00ean th\u1ef1c t\u1ebf, v\u1ea5n \u0111\u1ec1 \u0111\u1ed1m \u0111en trong qu\u00e1 tr\u00ecnh t\u1ea1o h\u1ea1t l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng l\u1ed7i ph\u1ed5 bi\u1ebfn, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf c\u00e1c h\u1ea1t nh\u1ef1a m\u00e0u s\u00e1ng th\u00ec c\u00e0ng r\u00f5 r\u1ec7t. V\u1eady l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u00fang ta c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n v\u1ea5n \u0111\u1ec1 n\u00e0y?<\/p>

\"\u0111\u1ed1m
\u0111\u1ed1m \u0111en tr\u00ean h\u1ea1t nh\u1ef1a<\/figcaption><\/figure> <\/div>

Nh\u1eefng \u0111\u1ed1m \u0111en n\u00e0y l\u00e0 s\u1ef1 suy gi\u1ea3m nhi\u1ec7t nh\u1ef1a c\u00f2n s\u00f3t l\u1ea1i c\u1ee7a m\u00e1y \u00e9p vi\u00ean nh\u1ef1a sau cacbua, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a vi\u00ean nh\u1ef1a, nh\u00e2n vi\u00ean n\u00ean th\u01b0\u1eddng xuy\u00ean v\u1ec7 sinh cacbua m\u00e1y.<\/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\u00e1y<\/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\/vi\/author\/admin\/"},"comment_info":"","_links":{"self":[{"href":"https:\/\/plastic-machines.org\/vi\/wp-json\/wp\/v2\/info\/500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/plastic-machines.org\/vi\/wp-json\/wp\/v2\/info"}],"about":[{"href":"https:\/\/plastic-machines.org\/vi\/wp-json\/wp\/v2\/types\/info"}],"author":[{"embeddable":true,"href":"https:\/\/plastic-machines.org\/vi\/wp-json\/wp\/v2\/users\/1"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/plastic-machines.org\/vi\/wp-json\/wp\/v2\/media\/477"}],"wp:attachment":[{"href":"https:\/\/plastic-machines.org\/vi\/wp-json\/wp\/v2\/media?parent=500"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/plastic-machines.org\/vi\/wp-json\/wp\/v2\/tags?post=500"},{"taxonomy":"info-type","embeddable":true,"href":"https:\/\/plastic-machines.org\/vi\/wp-json\/wp\/v2\/info-type?post=500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}