용융성 합금/저융점 합금

Fusible alloys, known for their lower melting points compared to solder alloys, are easily liquefied with moderate heat, making them ideal for temporary solid state during processing or as temperature sensors, such as in fire detection sprinkler systems. Originally developed in the 19th century and known by names such as Field’s metal, Wood’s metal, and Rose’s metal, these alloys have evolved with modern materials technology to include precise compositions like Indalloy®117, Indalloy®158, and Indalloy®19, delivering consistent melting behavior across an extended temperature range.

Indium Corporation 제공

Broad Alloy Portfolio and Formulation Depth
Materials Science and Process Support
Leading Global Supplier of Fusible Alloys

Lens Blocking using Fusible Alloys or Low Melting Point Alloys

제품 개요

Fusible alloys, characterized by their low melting points as low as 47°C (117°F), offer remarkable versatility by transitioning seamlessly between solid and molten states. This unique property makes them indispensable for precise and temporary applications. These alloys serve as excellent as precision support materials, securely holding and protecting workpieces during crucial finishing processes, such as polishing and grinding. Additionally, the eutectic melting points of fusible alloys facilitate passive activation systems, ensuring the reliable and safe operation of devices like fire sprinklers without the need for electronic circuitry, thereby enhancing safety and simplicity.

사용 가능한 합금 구성의 최대 범위

Field’s metal, Wood’s metal, and many other alloy compositions are available. Available melting points start at 47°C/117°F and go up into the solder alloy range at above 200°C.

Lens Blocking for Grinding and Polishing with Indalloy^®117 & Indalloy^®19

Indalloy^®117 and Indalloy^®19 are the most popular alloys for lens blocking in the optical lens grinding industry, with melt points at 47°C/117°F and 60°C/140°F, respectively.

화재 스프링클러 시스템의 정확한 작동

Melting activation is solely controlled by environmental temperature and thus enables the design of completely passive devices for fire detection. Indalloy^®158 is a popular alloy choice for fire sprinkler systems.

Custom Alloy Development

Melting behavior is determined by precise control of the alloy composition. We offer a wide range of alloy options and melting points. We also work with customers to develop custom alloys with target melting points and other properties tailored to their application needs.

혜택

Explore our large range of Indalloy® offerings and contact our technical support team if you need a specific temperature range for the desired melting point.

Indalloy®117

Lowest melting point in the bismuth-based fusible alloy system
광학 렌즈 가공을 위한 렌즈 차단에 널리 사용됩니다.

Indalloy®19 (Field’s Metal)

Indium-Bismuth-Tin (InBiSn) alloy
Popular lead-cadmium free alternative in lens grinding
Melting point at 60°C (140°F)

Indalloy®158 (Wood’s Metal)

1860년 B. 우즈에 의해 최초 특허 취득
Melting point at 70°C (158°F)

납 및 카드뮴 무함유 합금 옵션

Numerous alloy options available
Indalloy®19 and Indalloy®281 are our most popular alloys

용융성 합금/저융점 합금 제품

많은 용융 합금은 비스무트(Bi) 합금 시스템을 기반으로 합니다. 다른 금속(주석(Sn), 인듐(In) 등)은 녹는점을 변화시키므로 합금 조성을 정밀하게 제어해야 합니다. 가장 많이 사용되는 합금의 몇 가지 예(모두 액점이 고점과 일치하는 공융 시스템입니다):

인돌리 #	117	136	19	158	281
합금 구성	44.7 Bi 22.6 Pb 19.1 In 8.3 Sn 5.3 Cd	49 Bi 21 In 18 Pb 12 Sn	51 In 32.5 Bi 16.5 Sn	50 Bi 26.7 Pb 13.3 Sn 10 Cd	58 Bi 42 Sn
리퀴더스(°C(°F) 단위)	47 (117)	58 (136)	60 (140)	60 (140)	138 (281)
E = 유텍	E	E	E	E	E