Hermetic Seal Technology, Inc.

• Body MaterialsMild Steel Stainless Steel Titanium
• Glass Materials52 Alloy Copper Core 446 or 52 alloy Molybdenum Platinum-Iridium Stainless Steel Titanium Other Materials Available Upon Request

Hermetic Seal Technology (HST) has been setting the standards for custom glass-to-metal seals, especially lithium battery seals, since 1994. We have specially formulated Lithium corrosion resistant glass to greatly reduce corrosion and to isolate lithium electrolytes, such as lithium manganese dioxide (LiMnO2), lithium sulfur dioxide (LiSO2), and lithium thionyl chloride (LiSOCl2) in lithium-ion batteries, from foreign agents. HST lithium battery seals can withstand corrosive chemicals, electrical variations, as well as extreme temperatures to give your battery a long shelf life. For high performance lithium batteries, we fabricate reliable hermetic seals from high-conductivity pin materials, exotic alloys and"both standard and custom formulated lithium battery glasses. We specialize in consistently processing lithium compatible glass materials including Cabal 12, TA-23, and Babal. Sealing hermetic glass to stainless steels or pure metals such as titanium and molybdenum, is our specialty. Our extensive sealing and welding capabilities enable us to seal into an eyelet, seal directly into the battery lid, or even hermetically weld the eyelet into the lid. We specially design eyelets that can be either resistance-welded or laser welded into the battery lid. With in-house hermeticity testing capabilities, HST performs 100% leak checks on all parts to guarantee that the seal is hermetic to better than 1 x 10-8 ccsec helium.

• Shell ShapesCircular Rectangular
• Shell MaterialsAnd Others Plated Mild Steel Stainless Steel

larger image As a leader in the manufacture of custom hermetic glass-to-metal seals, we manufacture hermetic connectors that support federal and military requirments. We can manufacture mil-spec hermetic connectors that adhere to performance and design requirements of various Mil-Specs including MIL-C-5015, MIL-C-26482, MIL-C-26500, MIL-C-38999 Series I, II, & III, as well as MIL-C-83723 Series I, II, & III specifications as well as customizing the basic design to meet our customer's requirments. Designed to withstand harsh environmental factors, our hermetic mil-spec connectors are widely used in the aerospace industry as well as various sensor and military applications. We specialize in manufacturing circular and rectangular hermetic connectors for your custom sealing needs. Factors such as contact types, number of contacts, contact sizes, contact termination options, shell styles, shell sizes, and coupling types are taken into consideration during our custom design process. The connector will be manufactured to your exact requirements. Let an HST engineer help you with your custom hermetic connector application.

• Glass MaterialsBabal Cabal 12 HST Custom Lithium Corrosion Resistant Glass TA-23
• HermeticityLess than 1 x 10-8 cc/sec helium leak rate (100% tested)

For the healthcare industry, we custom design and manufacture a unique line of medical equipment titanium seals. HST specializes in manufacturing glass-to-metal seals for lithium batteries used in medical implantable devices such as pacemakers, heart defibrillators, drug-delivery systems, portable diagnostic equipment, and pumps. Unlike conventional glass sealing processes, our manufacturing process does not involve chemical oxide removal processes. Our production processes are also free from the carburization process that weakens the corrosion resistant capabilities of the seal’s housing. With clean seal technology, we make ready-to-install glass seals that do not require any post machining. We efficiently seal stainless steel as well as titanium housings with a variety of pins and glass combinations. Pins for your electrical feedthrus for critical medical equipment can be manufactured from molybdenum, titanium, stainless steel, and platinumiridium. Besides manufacturing glass from standard materials such as Babal, TA-23, and Cabal 12, we also make our own lithium corrosion resistant glass materials. HST performs 100% leak tests on titanium seals in all types of medical equipment. Our glass-to-metal seals consistently have a minimum helium leak rate of 1 x 10-8 ccsec.

• Glass MaterialsBabal Cabal 12 and other low silica glass Corning 9010 Corning 9013 HST Custom Lithium Corrosion Resistant Glass TA-23 Other Borosilicate, Barium Alkali, and Soda-Lime glass
• Hermeticity1 x 10-8 cc/sec helium leak rate

Our experience and expertise in hermetic welding plus brazing allows us to offer range of glass-to-metal seals for the healthcare, military, aerospace, electronic, and automotive industries. Using resistance welding we are able to hermetically join glass seals to metal surfaces. To ensure the high hermeticity of the seals, we take into consideration factors such as the type of materials used in the welding process and the temperature to which the glass seal is heated. Our in-house welding and testing capabilities enable us to produce leak-tight hermetic assemblies. In addition to welded glass-to-metal seals, we also produce hermetically brazed assemblies. By hermetic brazing, HST manufactures leak-tight seals. Regardless of the processing approach we adopt, be it welding or brazing, all our hermetically sealed components are subject to 100% leak tests. We guarantee a hermeticity of 1 x 10-8 ccsec on all our welded or brazed seals.

• Pin MaterialsAlloy 52 and Copper Cored 52 Alloy Molybdenum Stainless Steel and Copper Cored Stainless Steel Other Materials Available Upon Request
• Insulator MaterialsBabal Barium Alkali Borosilicate Cabal 12 and other low silica glass Corning 9010 Corning 9013 HST Custom Lithium Corrosion Resistant Glass Soda Lime TA-23

At HST, we engineer glass-to-metal sealsfeedthrus in different specifications to meet varied high amperage needs. Pins for these feedthrus are made from hermetically sealable materials, such as alloy 52, stainless steel, molybdenum, copper-cored 52 alloy, and copper cored stainless steel. Our high amperage seals are used in electric vehicles and high output batteries, as well as in several high current switching applications. Our engineers can design as well as build feedthrus to custom specifications, facilitating easy mounting.

• Body MaterialsAnd Many Others Exotic Alloys Mild Steel Stainless Steel Titanium
• Pin MaterialsAlloy 52 and Copper Cored 52 Alloy Molybdenum Platinum-Iridium Stainless Steel and Copper Cored Stainless Steel Other Materials Available Upon Request

With expertise in the design and manufacture of various hermetic seals, we offer customized hermetic seals suited for all your leak-tight power feed thru requirements. Our capabilities cover every facet of manufacturing custom seals - from initial design plus prototype production to high volume manufacturing. In addition, we have the ability to work with different materials for the body, insulation, and conductor parts of your hermetic seals. Seals can be designed to withstand very high temperatures, pressures, or other extreme environmental condition. We manufacture custom hermetic seals from stainless steel, Inconel, mild steel, titanium molybdenum, titanium, as well as other exotic alloys. We also offer plating options such as gold plating, silver plating, and electrolytic nickel plating. A number of industries, including defense, telecommunications, aerospace, and automotive electronics use our custom hermetic seals.