Basic Principles<\/strong><\/p>\n Compression molding is the process of placing sealing materials such as rubber into a specific mold cavity, and subjecting the material to plastic deformation and solidification under certain temperature, pressure, and time conditions. This process is similar to \"shaping\" soft materials into the precise shape specified by a mold. For example, when manufacturing a circular molded seal, rubber material will fill every corner of the mold cavity under pressure in the space of the circular mold, ultimately forming a circular seal that meets the requirements.<\/p>\n Process Steps<\/strong><\/p>\n Material preparation: Firstly, suitable sealing materials should be selected, such as rubber (including nitrile rubber, fluororubber, etc.), plastic (such as polytetrafluoroethylene), etc. These materials should be selected according to the requirements of the sealing environment, chemical resistance, temperature range, etc. For example, for seals that need to work in oil resistant environments, nitrile rubber is a good choice because it has good resistance to oils.<\/p>\n Feeding: Place the prepared material into the mold, and the amount of material should be determined based on the size of the seal and the volume of the mold cavity. If too much material is added, it may cause the seal size to exceed the tolerance or flash; If there is too little material, it may not be possible to fully fill the mold, resulting in a shortage of sealing components.<\/p>\n Mold closing and pressurization: Close the mold and apply a certain amount of pressure, which depends on the properties of the material and the complexity of the seal. Generally speaking, the pressure range can range from a few megapascals to several tens of megapascals. This pressure can evenly distribute the material in the mold and eliminate any air inside.<\/p>\n Curing molding: Hold the material at an appropriate temperature for a certain period of time to allow it to cure. For rubber seals, this process is usually a vulcanization process, which crosslinks rubber molecules to form a three-dimensional network structure, thereby improving the physical properties of the seal. The control of curing time and temperature is crucial, as different materials have different requirements. For example, the vulcanization temperature of fluororubber seals is generally higher than that of nitrile rubber seals.<\/p>\n Demolding: After curing is complete, open the mold and remove the molded seal. After demolding, the sealing components may require further processing, such as trimming burrs, surface polishing, etc.<\/p>","protected":false},"excerpt":{"rendered":" \u5de5\u827a\u6982\u8ff0 \u57fa\u672c\u539f\u7406 \u6a21\u538b\u662f\u5c06\u6a61\u80f6\u7b49\u5bc6\u5c01\u6750\u6599\u653e\u5165\u7279\u5b9a\u7684\u6a21\u5177\u578b\u8154\u4e2d\uff0c\u5728\u4e00\u5b9a\u7684\u6e29\u5ea6\u3001\u538b\u529b\u548c\u65f6\u95f4\u6761\u4ef6\u4e0b\uff0c\u4f7f\u6750\u6599\u53d1\u751f\u5851\u6027 […]<\/p>\n","protected":false},"featured_media":344,"template":"","meta":[],"product_brand":[],"product_cat":[40],"product_tag":[],"class_list":{"0":"post-343","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-40","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"http:\/\/www.saiaseal.com\/en\/wp-json\/wp\/v2\/product\/343","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.saiaseal.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"http:\/\/www.saiaseal.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.saiaseal.com\/en\/wp-json\/wp\/v2\/media\/344"}],"wp:attachment":[{"href":"http:\/\/www.saiaseal.com\/en\/wp-json\/wp\/v2\/media?parent=343"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"http:\/\/www.saiaseal.com\/en\/wp-json\/wp\/v2\/product_brand?post=343"},{"taxonomy":"product_cat","embeddable":true,"href":"http:\/\/www.saiaseal.com\/en\/wp-json\/wp\/v2\/product_cat?post=343"},{"taxonomy":"product_tag","embeddable":true,"href":"http:\/\/www.saiaseal.com\/en\/wp-json\/wp\/v2\/product_tag?post=343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}