The jaw plates of a rock jaw crusher are crucial components that directly interact with the crushed material, so they must be made from highly wear-resistant and durable materials to withstand abrasion, impact, and compression forces. Common materials used include:<\/p>\n
1. Manganese Steel (Hadfield Steel \u2013 ASTM A128)
\n – Grade: Typically Mn14%, Mn18%, or Mn22% (with 12-14% manganese, 1-1.4% carbon).
\n – Properties:
\n – Exceptional toughness and work-hardening ability (becomes harder under impact).
\n – Self-repairing surface due to hardening under pressure.
\n – Suitable for highly abrasive and hard rocks like granite, basalt, and quartz.
\n – Limitations: May deform under extreme loads if not properly heat-treated.<\/p>\n
2. High Chrome Cast Iron (HCCI) \/ White Iron
\n – Grade: ASTM A532 Class III Type A (e.g., Cr20, Cr26, Cr28 with 2-3% carbon).
\n – Properties:
\n – Excellent abrasion resistance due to hard chromium carbides.
\n – More brittle than manganese steel but better for fine abrasive materials.
\n – Often used in secondary crushing or softer rocks.
\n – Limi![\"Material](\"\/img\/index-host4.jpg\")
ions: Lower impact resistance; prone to cracking under heavy shocks.<\/p>\n
3. Alloy Steel (Low\/Medium Carbon Steel with Boron or Chromium)
\n – Used in less abrasive applications where cost is a concern.
\n – May be heat-treated for improved hardness.<\/p>\n
4. Composite Materials (Ceramic Inserts or Bimetallic Plates)
\n – Combines a tough base (steel) with ultra-hard inserts (tungsten carbide or ceramic).
\n – Used in highly abrasive environments for extended lifespan.<\/p>\n
Selection Factors:
\n– Rock Type: Harder rocks (granite, basalt) require manganese steel; softer materials may use high chrome iron.
\n– Crusher Type: Primary crushers need impact-resistant manganese steel; secondary\/tertiary crushers may use high-chrome alloys.
\n– Cost vs. Lifespan: Manganese steel is more expensive but lasts longer in harsh conditions.<\/p>\n
Additional Treatments:
\n– Hardfacing\/Welding: Some plates are reinforced with wear-resistant welding layers.
\n– Heat Treatment: Enhances hardness and toughness.<\/p>\n
For maximum durability in tough applications, Mn<\/p>\n","protected":false},"excerpt":{"rendered":"
The jaw plates of a rock jaw crusher are crucial components that directly interact with the crushed material, so they must be made from highly wear-resistant and durable materials to withstand abrasion, impact, and compression forces. Common materials used include: 1. Manganese Steel (Hadfield Steel \u2013 ASTM A128) – Grade: Typically Mn14%, Mn18%, or Mn22% […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40],"tags":[],"class_list":["post-9193","post","type-post","status-publish","format-standard","hentry","category-product-news"],"_links":{"self":[{"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/posts\/9193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/comments?post=9193"}],"version-history":[{"count":0,"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/posts\/9193\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/media?parent=9193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/categories?post=9193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zwccrusher.com\/index.php\/wp-json\/wp\/v2\/tags?post=9193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}