Precision manufacturing, connecting safety and efficiency - the all-round technology pioneer in the field of water heater connectors
Release Time : 2025-06-30
At a time when smart homes and energy equipment are rapidly iterating, the safety and durability of civilian products such as water heaters and gas equipment have become the core demands of users. As the hidden champion in the field of metal connectors, we have deeply cultivated multi-material processing, precision manufacturing processes and global supply chain management. With water heater connectors (nuts, shaft cores, rivet plates) as core products, we have extended to the field of high-end industrial connectors to provide global users with full-scenario solutions "from home to engineering".
1. Technological breakthrough: deep integration of multi-materials and precision processes
We have broken through the limitations of traditional single materials and built a complete material system covering carbon steel, stainless steel, copper alloys and special alloys. We have developed differentiated technical solutions for different application scenarios of water heater connectors:
1. Nut: pressure-resistant and anti-corrosion, protecting every drop of hot water
Material selection: 304/316L stainless steel substrate, tensile strength ≥520MPa, chloride ion corrosion resistance 10 times the national standard, can adapt to coastal high humidity and high salt spray environment
Process innovation: cold heading + rolling thread, formed in one step by a multi-station cold heading machine, thread accuracy reaches 6H level, defects such as pores and cracks are eliminated, and the pressure bearing capacity is increased by 30% compared with traditional processes.
Composite coating technology, the surface of the nut is first nickel-plated (thickness 2-3μm) and then zinc-nickel alloy (containing 12% nickel). The salt spray test is more than 1000 hours without red rust, far exceeding the industry standard (500 hours), ensuring long-term use without leakage.
Typical applications: high-pressure scenes such as water heater inlet and gas pipeline connection. A single product has passed the 2.5MPa water pressure test and 100,000 fatigue tests without failure.
2. Shaft core: micron-level precision, drive efficient transmission
Material upgrade: 45# steel is selected for tempering treatment + surface carburizing and quenching, the core hardness is HRC28-32, the surface hardness is HRC58-62, and both impact resistance and wear resistance are taken into account.
Precision machining: CNC five-axis linkage machining, shaft core coaxiality ≤0.01mm, circular runout ≤0.005mm, ensuring seamless cooperation with the temperature control valve body and transmission mechanism. Laser cladding technology, cladding copper-based alloy on the contact surface between the shaft core and the sealing ring, reducing the friction coefficient to 0.08, extending the service life to twice that of traditional processes, and reducing maintenance frequency.
Engineering case: The shaft core of the temperature control system of the gas water heater has passed the extreme temperature cycle test from -20℃ to 80℃, and has been opened and closed for 100,000 times without jamming, ensuring stable operation of the equipment.
3. Rivet plate: structural reinforcement to resist vibration impact
Design optimization: Adopting the integrated structure of "rivet + stamping plate", the shear resistance of the rivet is ≥8kN, and the tensile strength of the stamping plate is ≥450MPa, which effectively disperses the vibration stress during the operation of the water heater.
Surface treatment:
Dacromet coating: The thickness of the chromium-free zinc-aluminum coating is 6-8μm, and it can withstand the neutral salt spray test for 720 hours, replacing traditional electroplating and meeting EU environmental protection standards.
Local sandblasting: sandblasting the riveted parts (roughness Ra3.2), coating adhesion increased by 40%, eliminating the risk of falling off.
Industry application: water heater shell, bracket and other key connection parts, a single device uses more than 50 rivets, and the yield rate reaches 99.97%.
2. Capacity guarantee: collaborative upgrade of flexible manufacturing and intelligent production
Facing the demand characteristics of "small batch, multiple varieties, fast delivery" in the water heater industry, we have built a "standardized production line + customized unit" capacity system:
Automated production line:
Nut cold heading production line: equipped with imported multi-station cold heading machine, single-line daily production capacity of 80,000 pieces, support M6-M24 specifications fast switching, to meet large-scale civilian needs.
Axle core processing center: integrated composite machine tools and online detection system, realize the full process automation of "turning-milling-grinding-quenching", with an annual production capacity of more than 3 million pieces.
Flexible manufacturing unit:
Rivet plate stamping line: Through the rapid mold change device, the production switch of different models of products can be completed within 2 hours to respond to urgent order needs.
3D printing assistance: Prototype verification of complex structure rivet plates, shortening the development cycle by 50% and reducing trial production costs by 30%.
Quality control:
Full process traceability system: From raw material storage to finished product delivery, each part is bound to a unique QR code to achieve real-time quality data.
Destructive test: 5% of products are sampled daily for pressure blasting and torque testing to ensure 100% pass rate.
3. Global cooperation: Technology migration from civilian products to industrial equipment
We take the water heater connector as the technical origin and extend our core capabilities to the fields of automobiles, construction, film and television, forming a "civilian + industrial" dual-wheel drive business structure:
Civilian field:
Research and develop high temperature resistant (120℃) gas connectors to solve the aging problem of traditional rubber seals and increase the service life of equipment.
Develop integrated rivet plates to reduce the assembly process of water heaters and reduce production costs.
Industrial field:
Transfer the sealing technology of water heater joints to automobile tensioner accessories, develop oil-resistant and vibration-resistant engine bolts, and supply them to high-end car companies around the world.
Provide high-strength rivet plates for building tower cranes with a load-bearing capacity of 50 tons, pass the EU CE certification, and enter the international municipal engineering market.
Cross-border innovation:
Film and television equipment chuck connectors: adopt copper alloy shaft core + precision thread design to achieve zero looseness under high-speed rotation, meeting the needs of movie camera shooting.
New energy equipment connectors: Develop graphene-enhanced composite nuts, with 50% higher corrosion resistance, suitable for ground source heat pumps, photovoltaic inverters and other scenarios.
4. Future layout: dual transformation of intelligence and greening
Facing the "dual carbon" goals and the trend of intelligent manufacturing, we are promoting three major strategic upgrades:
Material innovation: Develop graphene-enhanced composite materials to increase the corrosion resistance of nuts by 50% and reduce weight by 20%, and plan to achieve mass production in 2025.
Intelligent surface treatment: Introducing AI coating thickness prediction system to control the uniformity of the shaft core coating within ±0.5μm, reducing material waste by 15%.
Zero-carbon factory: Build photovoltaic power generation + waste heat recovery system, achieve 100% green electricity supply for production lines in 2024, and reduce carbon emissions of single products by 30%.
From the tiny joints of household water heaters to the core bolts of automobile engines, to the key rivets of tower crane steel structures, we use the technical concept of "millimeter-level precision, 10,000-ton load" to connect every link of safety and efficiency. In the future, we will continue to use innovation as a blade and quality as a shield to write a new chapter of Chinese precision manufacturing in the wave of global industrial upgrading.
1. Technological breakthrough: deep integration of multi-materials and precision processes
We have broken through the limitations of traditional single materials and built a complete material system covering carbon steel, stainless steel, copper alloys and special alloys. We have developed differentiated technical solutions for different application scenarios of water heater connectors:
1. Nut: pressure-resistant and anti-corrosion, protecting every drop of hot water
Material selection: 304/316L stainless steel substrate, tensile strength ≥520MPa, chloride ion corrosion resistance 10 times the national standard, can adapt to coastal high humidity and high salt spray environment
Process innovation: cold heading + rolling thread, formed in one step by a multi-station cold heading machine, thread accuracy reaches 6H level, defects such as pores and cracks are eliminated, and the pressure bearing capacity is increased by 30% compared with traditional processes.
Composite coating technology, the surface of the nut is first nickel-plated (thickness 2-3μm) and then zinc-nickel alloy (containing 12% nickel). The salt spray test is more than 1000 hours without red rust, far exceeding the industry standard (500 hours), ensuring long-term use without leakage.
Typical applications: high-pressure scenes such as water heater inlet and gas pipeline connection. A single product has passed the 2.5MPa water pressure test and 100,000 fatigue tests without failure.
2. Shaft core: micron-level precision, drive efficient transmission
Material upgrade: 45# steel is selected for tempering treatment + surface carburizing and quenching, the core hardness is HRC28-32, the surface hardness is HRC58-62, and both impact resistance and wear resistance are taken into account.
Precision machining: CNC five-axis linkage machining, shaft core coaxiality ≤0.01mm, circular runout ≤0.005mm, ensuring seamless cooperation with the temperature control valve body and transmission mechanism. Laser cladding technology, cladding copper-based alloy on the contact surface between the shaft core and the sealing ring, reducing the friction coefficient to 0.08, extending the service life to twice that of traditional processes, and reducing maintenance frequency.
Engineering case: The shaft core of the temperature control system of the gas water heater has passed the extreme temperature cycle test from -20℃ to 80℃, and has been opened and closed for 100,000 times without jamming, ensuring stable operation of the equipment.
3. Rivet plate: structural reinforcement to resist vibration impact
Design optimization: Adopting the integrated structure of "rivet + stamping plate", the shear resistance of the rivet is ≥8kN, and the tensile strength of the stamping plate is ≥450MPa, which effectively disperses the vibration stress during the operation of the water heater.
Surface treatment:
Dacromet coating: The thickness of the chromium-free zinc-aluminum coating is 6-8μm, and it can withstand the neutral salt spray test for 720 hours, replacing traditional electroplating and meeting EU environmental protection standards.
Local sandblasting: sandblasting the riveted parts (roughness Ra3.2), coating adhesion increased by 40%, eliminating the risk of falling off.
Industry application: water heater shell, bracket and other key connection parts, a single device uses more than 50 rivets, and the yield rate reaches 99.97%.
2. Capacity guarantee: collaborative upgrade of flexible manufacturing and intelligent production
Facing the demand characteristics of "small batch, multiple varieties, fast delivery" in the water heater industry, we have built a "standardized production line + customized unit" capacity system:
Automated production line:
Nut cold heading production line: equipped with imported multi-station cold heading machine, single-line daily production capacity of 80,000 pieces, support M6-M24 specifications fast switching, to meet large-scale civilian needs.
Axle core processing center: integrated composite machine tools and online detection system, realize the full process automation of "turning-milling-grinding-quenching", with an annual production capacity of more than 3 million pieces.
Flexible manufacturing unit:
Rivet plate stamping line: Through the rapid mold change device, the production switch of different models of products can be completed within 2 hours to respond to urgent order needs.
3D printing assistance: Prototype verification of complex structure rivet plates, shortening the development cycle by 50% and reducing trial production costs by 30%.
Quality control:
Full process traceability system: From raw material storage to finished product delivery, each part is bound to a unique QR code to achieve real-time quality data.
Destructive test: 5% of products are sampled daily for pressure blasting and torque testing to ensure 100% pass rate.
3. Global cooperation: Technology migration from civilian products to industrial equipment
We take the water heater connector as the technical origin and extend our core capabilities to the fields of automobiles, construction, film and television, forming a "civilian + industrial" dual-wheel drive business structure:
Civilian field:
Research and develop high temperature resistant (120℃) gas connectors to solve the aging problem of traditional rubber seals and increase the service life of equipment.
Develop integrated rivet plates to reduce the assembly process of water heaters and reduce production costs.
Industrial field:
Transfer the sealing technology of water heater joints to automobile tensioner accessories, develop oil-resistant and vibration-resistant engine bolts, and supply them to high-end car companies around the world.
Provide high-strength rivet plates for building tower cranes with a load-bearing capacity of 50 tons, pass the EU CE certification, and enter the international municipal engineering market.
Cross-border innovation:
Film and television equipment chuck connectors: adopt copper alloy shaft core + precision thread design to achieve zero looseness under high-speed rotation, meeting the needs of movie camera shooting.
New energy equipment connectors: Develop graphene-enhanced composite nuts, with 50% higher corrosion resistance, suitable for ground source heat pumps, photovoltaic inverters and other scenarios.
4. Future layout: dual transformation of intelligence and greening
Facing the "dual carbon" goals and the trend of intelligent manufacturing, we are promoting three major strategic upgrades:
Material innovation: Develop graphene-enhanced composite materials to increase the corrosion resistance of nuts by 50% and reduce weight by 20%, and plan to achieve mass production in 2025.
Intelligent surface treatment: Introducing AI coating thickness prediction system to control the uniformity of the shaft core coating within ±0.5μm, reducing material waste by 15%.
Zero-carbon factory: Build photovoltaic power generation + waste heat recovery system, achieve 100% green electricity supply for production lines in 2024, and reduce carbon emissions of single products by 30%.
From the tiny joints of household water heaters to the core bolts of automobile engines, to the key rivets of tower crane steel structures, we use the technical concept of "millimeter-level precision, 10,000-ton load" to connect every link of safety and efficiency. In the future, we will continue to use innovation as a blade and quality as a shield to write a new chapter of Chinese precision manufacturing in the wave of global industrial upgrading.