[et_pb_section fb_built=”1″ admin_label=”section” module_class=”row” _builder_version=”4.24.3″ custom_margin=”0px|0px|0px|0px|true|true” global_colors_info=”{}”][et_pb_row admin_label=”row” module_class=”wrapper” _builder_version=”4.24.3″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” custom_padding=”0px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text admin_label=”Text” _builder_version=”4.24.3″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” global_colors_info=”{}”]<\/p>\n
Brazing is a joining process where bonding between metal parts is produced by heating to suitable temperatures above 450\u00b0C, using non-ferrous filler metals having melting temperatures below those of the base metals.<\/p>\n
Brazing filler metal is introduced at one or more points along the joint between two base metals, and heated by conduction from the parts. When molten, it is distributed throughout the joint by capillary attraction. The resulting continuous joint provides a tight, leak-proof seal.<\/p>\n
Brazing\u2019s high strength can be explained by examining a joint cross-section. When the filler metal flows out onto the base metal, a process called wetting occurs. To oversimplify, the filler metal (A) dissolves and reacts with the base metal (B) forming a thin layer called the joint interface (AB). This layer cools to form a totally different metal \u2013 actually an alloy of the base and filler metals. Thus, the brazed joint becomes a \u201csandwich\u201d of different layers, each metallurgically linked to the next. The resulting joint is actually stronger than the base metals being joined.<\/p>\n
Fusion paste alloys deliver all the ingredients for a strong, void-free brazed joint in one deposit. Finely atomized filler metal, appropriate flux for the application, and special binders are blended into one homogeneous mixture. Automatic dispensers apply the paste in consistent, measured amounts \u2013 especially cost-effective for production brazing operations. If you have a brazing application, we would like to hear from you. Contact Us<\/a> today!.<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" Fundamentals Of Brazing – How Brazing Works Brazing is a joining process where bonding between metal parts is produced by heating to suitable temperatures above 450\u00b0C, using non-ferrous filler metals having melting temperatures below those of the base metals. Brazing filler metal is introduced at one or more points along the joint between two…<\/p>","protected":false},"author":222122137,"featured_media":2248,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"[et_pb_section fb_built=\"1\" admin_label=\"section\" module_class=\"row\" _builder_version=\"4.24.3\" custom_margin=\"0px|0px|0px|0px|true|true\" global_colors_info=\"{}\"][et_pb_row admin_label=\"row\" module_class=\"wrapper\" _builder_version=\"4.24.3\" background_size=\"initial\" background_position=\"top_left\" background_repeat=\"repeat\" custom_padding=\"0px||||false|false\" global_colors_info=\"{}\"][et_pb_column type=\"4_4\" _builder_version=\"4.16\" custom_padding=\"|||\" global_colors_info=\"{}\" custom_padding__hover=\"|||\"][et_pb_text admin_label=\"Text\" _builder_version=\"4.16\" background_size=\"initial\" background_position=\"top_left\" background_repeat=\"repeat\" global_colors_info=\"{}\"] The basis for Fusion\u2019s industry changing brazing pastes is a unique carrier binder system. This holds a finely atomised filler metal, and in some cases an oxide removing proprietary flux, in a stable suspension.<\/p>\r\n These binders are specifically formulated to ensure optimum characteristics regardless of the application method or brazing process. Our binder systems fall into two main groups: \u2018fluxless\u2019 and \u2018fluxed\u2019 binder carrier systems.<\/p>\r\n Fluxless binder systems are primarily utilised in a variety of brazing furnace operations. However, they also can be tested in select flame or induction systems depending on the context.<\/p>\r\n Applications where a fluxless system may be implemented include:<\/p>\r\n Fusion offers a diverse portfolio of fluxless binder systems optimised for a variety of application methods (e.g. machine dispensing, dip\/roll coat, stencil, squirt bottle) and \u201cstaged properties\u201d (i.e. adhesion, slump, dry time).<\/p>\r\n Further advantages of fluxless brazing paste systems include their potential for higher alloy loading than traditional fluxed paste systems, which helps to minimise residue in furnace applications.<\/p>\r\n For more details of Fusion\u2019s fluxless binder brazing paste systems, and the appropriate conditions for various applications, please contact us<\/a>.<\/p>\r\n The key ingredient in Fusion\u2019s fluxed binder system is a proprietary flux. The role of this flux is to remove surface oxides and prevent reoccurrence of filler and base metal oxidation during open air brazing applications.<\/p>\r\n Industry standards dictate the performance criteria and include general chemical family requirements which often impact activation temperatures and residues. However, the flux itself remains a proprietary formulation.<\/p>\r\n The table in our brochure<\/a> provides a starting point for identifying the flux required to properly join base materials based on their composition and the filler metal selected for the joint.<\/p>\r\n Fluxed binder systems incorporate a variety of fluxes as well as the brazing filler metal in suspension. These binder systems are optimised for Fusion\u2019s automated dispensing systems, providing the benefit of improved application consistency.<\/p>\r\n Although we offer a wide variety of fluxed binder systems, our technical team can make minor modifications to customise each system for a customer\u2019s specific application requirements. As such, the physical properties of each binder system can vary to ensure optimum results for a variety of factor,s including joint design, fliler metal composition\/loading, part fixture orientation, brazing process, and temperature constraints.<\/p>\r\n Since brazing fluxes are composed of chemically active \u2013 and often corrosive \u2013 materials, their post-braze residue should typically be removed to minimise corrosion issues and ensure joint integrity.<\/p>\r\n For more details of our most common fluxed binder brazing paste systems, and the appropriate conditions for various applications, please contact us<\/a>.<\/p>\r\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]","_et_gb_content_width":"","_monsterinsights_skip_tracking":false,"_analytify_skip_tracking":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1399,1401],"tags":[1402],"class_list":["post-2268","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-brazing-pastes","tag-brazing-pastes","entry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\tFluxless binder systems for brazing paste<\/h2>\r\n
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Fluxed binder carrier systems<\/h2>\r\n