ノースヒルズ溶接工業 List of Products and Services

North Hills Welding Industry Co., Ltd. has been in operation for only four years, yet we receive numerous inquiries daily, primarily from research and development personnel at publicly listed companies and university research institutions. We possess data based on theory for everything from joining unfamiliar special materials to dissimilar materials, which our skilled workers then transform into reality. We aim to be a total solution provider for joining as a new manufacturing industry. Additionally, we have incorporated the new joining technology, the 3DWash method, to maintain high quality. We invite you to take a look at our company overview. We are confident that the image of your new products will be realized. **Strengths of North Hills Welding Industry Co., Ltd.** Our joining technology encompasses over 20 types, most of which can be proposed by North Hills Welding Industry. Here are a few examples: - YAG laser welding - Silver brazing - Electron beam welding - Plasma welding - Friction welding - TIG welding For a limited time, we are offering a catalog exclusively for Ipros users that proposes solutions for dissimilar material joining and total joining solutions! *For more details, please download the catalog or contact us.*

• Vacuum Equipment

North Hills Welding Industry is a company that manufactures core products for aerospace, energy, semiconductors, inspection equipment, and defense-related sectors. We will explain the precision cleaning process within surface treatment as part of our manufacturing and ordering flow. Our company performs precision cleaning using a vapor-type ultrasonic cleaning device. By using this vapor-type ultrasonic cleaning device, we can achieve high-quality welding and provide semiconductor components in a clean condition. We can clean parts up to 500×500×500 (mm) in size. The shortest delivery time is same-day shipping, and prices start from 1,500 yen. 【Features】 ■ Vapor cleaning tank: Cleans by floating dirt with steam from a dedicated liquid ■ Ultrasonic tank: Removes fine dirt by vibrating with ultrasonic waves ■ Rinse tank: Removes final dirt ■ Vapor cleaning tank: Cleans fine dirt while drying with steam For more details, please refer to our catalog or feel free to contact us.

• Other semiconductors
• Contract manufacturing
• Ultrasonic Cleaner

North Hills Welding Industry Co., Ltd. has been in operation for only four years, yet we receive numerous inquiries daily, primarily from research and development personnel at publicly listed companies and university research institutions. We possess data based on theory for joining unfamiliar special materials as well as dissimilar materials, which our skilled craftsmen bring to life. We aim to be a total solution provider for joining as a new manufacturing industry. Additionally, we have incorporated the new joining technology, the 3DWash method, to maintain high quality. We invite you to take a look at our company overview. We are confident that the image of your new products will be realized. **Strengths of North Hills Welding Industry Co., Ltd.** Our joining technology encompasses over 20 types, most of which can be proposed by North Hills Welding Industry. Here are a few examples: - YAG laser welding - Silver brazing - Electron beam welding - Plasma welding - Friction joining - TIG welding Currently, we are offering a catalog exclusively for Ipros users that presents proposals for dissimilar material joining and total solutions for joining! *For more details, please download the catalog or contact us.*

• Vacuum Equipment

Titanium is an excellent metal with superior weldability and minimal changes in the mechanical properties and corrosion resistance of the welded joints. However, titanium has a strong affinity for gases such as oxygen and nitrogen at high temperatures, and when it reacts with these gases, it can cause hardening and embrittlement, leading to a decrease in the ductility of the welded joints and potentially causing the formation of blowholes. Welding must be carried out in an inert gas or vacuum atmosphere. As a vacuum characteristic, it is capable of producing very high-quality results. 【Features】 ■ Minimal changes in the mechanical properties and corrosion resistance of the welded joints ■ Strong affinity for gases such as oxygen and nitrogen at high temperatures ■ Welding is performed in an inert gas or vacuum atmosphere ■ Costs can be significantly higher, so it is used only for certain specialized applications ■ Electrolytic polishing of titanium can result in a purple color due to reactions For more details, please contact us.

• Other metal materials

"Hastelloy" is used when corrosion resistance and heat resistance greater than that of stainless steel are required. It is primarily used for the targets, heaters, and other core components inside the chamber (container), and in some cases, the chamber itself may be made of Hastelloy. Our company can procure materials from both Haynes International and MMC Super Alloy Co., Ltd. We can respond smoothly with Haynes products. 【Product Lineup】 ■ Hastelloy B Alloy ■ Hastelloy C Alloy ■ Hastelloy X Alloy, etc. Please contact us for more details.

• Other metal materials

At North Hills Welding Industry Co., Ltd., we are capable of welding "Permalloy." Plates with a thickness of 2mm tend to be difficult to obtain. The minimum order for material manufacturing starts at 1 ton. (As of June 2013) 【Features】 ■ Capable of welding Permalloy ■ Minimum order for material manufacturing starts at 1 ton Please contact us for more details.

• Other metal materials

"Steel" has a thermal conductivity of pure copper that is about 8 times greater than that of mild steel. As a result, the welding heat that is applied rapidly diffuses to the base material side, making the weld joint less compatible. Additionally, it is characterized by a higher likelihood of defects such as poor fusion and slag inclusion. To achieve sufficient penetration, considerable preheating is necessary, and the width of the heat-affected zone also becomes significantly larger. [Features] - Higher likelihood of defects such as poor fusion and slag inclusion - The thermal conductivity of pure copper is about 8 times that of mild steel - Significant preheating is required to achieve sufficient penetration - The width of the heat-affected zone also becomes significantly larger For more details, please contact us.

• Steel

"Aluminum" has characteristics such as good vacuum properties, light weight, non-magnetic, good thermal conductivity, and corrosion resistance. It is strong at low temperatures and has toughness, making it suitable for use in applications like liquid nitrogen traps. Its corrosion resistance is achieved because it forms an oxide film on the aluminum surface immediately after processing, making it unsuitable for vacuum chambers with high vacuum levels or above. With a melting point of 660-1000°C, it is easy to weld, but the difficulty increases in applications like airtight welding in vacuum chambers. 【Features】 ■ Good vacuum properties ■ Light weight ■ Non-magnetic ■ Good thermal conductivity ■ Corrosion resistant For more details, please contact us.

• aluminum

"Duplex stainless steel (austenitic-ferritic type)" features a duplex structure, excellent acid resistance, pitting resistance, and high strength with "SUS329J1," as well as resistance to environments containing hydrogen sulfide, carbon dioxide, and chlorides with "SUS329J3L," and outstanding pitting resistance and stress corrosion cracking resistance with "SUS329J4L." 【Product Lineup】 ■SUS329J1 ■SUS329J3L ■SUS329J4L For more details, please contact us.

• stainless

"Ferritic stainless steel" has magnetic properties and requires caution against cold cracking during welding due to its susceptibility to weld cracking. Typically, preheating is necessary. In steel grades with reduced carbon and nickel, the susceptibility to cracking is low, and when using γ-type welding materials, preheating is not required (e.g., SUS410L). The heat-affected zone of the weld is hard and brittle, but post-treatment can restore toughness and ductility. In steel grades with reduced carbon and nickel, there is toughness even without post-welding treatment. 【Lineup】 ■SUS440C For more details, please contact us.

• stainless

"Austenitic stainless steel" has excellent workability and weldability, and unlike other stainless steels, it is a non-magnetic welding material. Due to its sensitivity to stress corrosion cracking, care must be taken regarding stress concentration in welded areas. Additionally, craters are prone to cracking, so it is necessary to devise welding techniques such as crater treatment. In vacuum device components, having magnetic properties can be problematic, making this material optimal. 【Features】 - High coefficient of expansion and low thermal conductivity - Better weldability compared to martensitic, ferritic, and duplex stainless steels - SUS304 series has good weldability - Susceptibility to weld cracking is higher in materials with high nickel and molybdenum content, making them sensitive to hot cracking - Strong low-temperature strength and toughness For more details, please contact us.

• stainless

The "TIG welding (argon welding) WEL-D method" is the optimal technique when you want to increase the amount of melting. While heat influence cannot be avoided, it is an essential welding method for providing products that are strong and highly durable. It is said that the welding area experiences the most stress in cases of extreme temperature changes. Our company specializes in performing high-strength welding without the need for beveling, allowing us to maintain nearly the same strength in the weld as in the material itself. 【Features】 ■ Optimal method for increasing the amount of melting ■ Ideal for providing products that are strong and highly durable ■ Maintains nearly the same strength in the weld as in the material with high-strength welding ■ Unique technology from North Hills Welding Industry For more details, please refer to our catalog or feel free to contact us.

• Processing Contract

The "TIG welding (argon welding) WEL-DW method" is the optimal technique for welding in a wide and shallow manner. It is a welding method that boasts a certain level of strength while minimizing heat impact and distortion as much as possible. It is also used for welding repairs on already finished products. A significant advantage is the ability to reduce costs and perform repairs without the need for new production. This technology is unique to North Hills Welding Industry. Additionally, the method name is also our proprietary technique. 【Features】 ■ Optimal for wide and shallow welding ■ Minimizes heat impact and distortion ■ A welding method that boasts a certain level of strength ■ Suitable for welding repairs on already finished products ■ Unique technology of North Hills Welding Industry For more details, please refer to the catalog or feel free to contact us.

• Processing Contract

"TIG welding (Tungsten Inert Gas welding)" is an abbreviation for tungsten inert gas welding, a technique that utilizes a tungsten electrode to create plasma over a short distance from the electrode tip to the workpiece by passing an electric current, melting and joining the workpiece with the thermal energy generated. It is used as the optimal gas for generating plasma in practical applications. If the request is simply for "welding," we will use this welding method. 【Features】 ■ TIG welding: Abbreviation for Tungsten Inert Gas welding ■ Used as the optimal gas for generating plasma in practical applications ■ A welding method that is highly dependent on the skills of the welder ■ A welding technique that uses a tungsten electrode to join materials with thermal energy For more details, please refer to the catalog or feel free to contact us.

• Processing Contract

This case is an example of brazing brass sheet metal with silver. Due to brass's tendency to dissipate heat easily, it is difficult to work with when thick, and it does not come together easily. However, with the brazing services from North Hills Welding Industry Co., Ltd., joining is possible. 【Details】 ■Welding Type: Brass Brazing ■Material: Brass ■Thickness: 1.5 ■Construction Period: 2 days *For more details, please download the catalog or contact us.

• Processing Contract

This is an introduction to processing examples of "vacuum transport routes." *For more details, please download the catalog or contact us.*

• Processing Contract

This is an introduction to processing examples of "vacuum transport routes." *For more details, please download the catalog or contact us.*

• Processing Contract

This is an introduction to a processing example of branch piping with a ferrule and VG flange + PT fittings. 【Features】 ■ There is a step in the middle of the outer circumference of the main pipe, resulting in a double piping configuration. *For more details, please download the catalog or contact us.

• Processing Contract

"Welding of the current introduction terminal" is difficult and challenging due to the presence of parts that melt and become unusable when the temperature rises near the melting point of TIG welding. However, North Hills Welding Industry can accomplish this because it possesses multiple specialized techniques. 【Features】 ■ Possesses multiple specialized techniques for TIG welding ■ All welding is done manually *For more details, please download the catalog or contact us.

• Processing Contract

This is an introduction to a custom-made example of a general ICF114 flange for vacuum use. The interior has a water-cooled jacket structure. 【Features】 ■ There is a welded bead on the inner circumference of the sealing surface ■ The interior has a water-cooled jacket structure ■ The flange of ICF34 is through ■ The edge of the ICF (sealing part) is also processed from scratch *For more details, please download the catalog or contact us.

• Processing Contract

"Brazing welding" uses low-melting-point alloys as adhesives, allowing multiple components to be joined without melting the base materials. Therefore, it enables the joining of small components. 【Features】 ■ Capable of joining small components ■ No distortion occurs *For more details, please download the catalog or contact us.

• Processing Contract

North Hills Welding Industry Co., Ltd.'s "thin plate welding" can weld thin plates made from various materials, including stainless steel and aluminum. 【Features】 ■ Capable of welding thin plates ■ Capable of welding dissimilar materials *For more details, please download the catalog or contact us.

• Processing Contract

North Hills Welding Industry Co., Ltd.'s "dissimilar material welding" enables the welding of materials that are typically considered unweldable. 【Features】 ■ Welding of SUJ2 and SUS304, which are usually deemed unweldable, is possible. ■ Strong adhesion (adhesion cannot be guaranteed). *For more details, please download the catalog or contact us.

• Processing Contract

North Hills Welding Industry Co., Ltd.'s "TIG Welding" can manufacture a wide range of items, including large vacuum cleaning tanks and water-cooled jacket welding embedments. 【Features】 ■ Strong and durable ■ Minimal distortion ■ Capable of welding dissimilar materials *For more details, please download the catalog or contact us.

• Processing Contract

Although small in scale, we play a role in the core product development for aerospace, energy, semiconductors, inspection equipment, and defense-related sectors. The core of our business lies in the components for semiconductor manufacturing equipment, and we have received high praise from our customers for our airtight welding. With a passion for exploring all types of metal materials, we pride ourselves on being one of the few companies that cover a wide range of material processing, from ultra-thin to thick materials, using our unique TIG welding techniques. Additionally, leveraging our location in Higashi-Osaka, we have secured about 200 outsourcing processing partners, primarily in the surrounding area. Please feel free to contact us!! 【Features】 ○ Any material is acceptable! ○ Airtight welding possible from a plate thickness of 0.2 mm ○ TIG welding with minimal distortion ○ Airtight welding in hard-to-see areas ○ Expertise in tanks for extremely low temperatures ○ Welding of dissimilar materials is also possible ◎ For more details, please contact us or download our catalog.

• Processing Contract

Our company is equipped with the highest level of TIG welding technology to provide hardware for advanced technology and research and development fields. Additionally, based on our extensive experience with stainless steel (SUS304/310/316L, etc.), special materials (titanium, aluminum, copper, permalloy, hastelloy, SUJ2, S45C, S50C, etc.), dissimilar welding, thin plate welding, and welding that can withstand extreme low temperatures, we are committed to striving for the development of new welding technologies.

• Processing Contract