Why choose Induction Brazing?

Why choose Induction Brazing? Induction heating technology is steadily displacing open flames and ovens as the preferred heat source in brazing. Seven key reasons explain this growing popularity: 1. Speedier solution Induction heating transfers more energy per square millimeter than an open flame. Put simply, induction can braze more parts per hour than alternative processes. 2. Quicker throughput Induction is ideal for in-line integration. Batches of parts no longer have to be taken aside or sent out for brazing. Electronic controls and customized coils let us integrate the brazing process into seamless production processes. 3. Consistent performance Induction heating is controllable and repeatable. Enter your desired process parameters into the induction equipment, and it will repeat heating cycles with only negligible deviations. 4. Unique controllability Induction lets operators view the brazing process, something that is difficult with flames. This and precise heating minimize the risk of overheating, which causes weak joints. 5. More productive environment Open flames create uncomfortable working environments. Operator morale and productivity suffer as a result. Induction is silent. And there is virtually no increase in ambient temperature. 6. Put your space to work DAWEI Induction brazing equipment has a small footprint. Induction stations slot easily into production cells and existing layouts. And our compact, mobile systems let you work on hard-to-access parts. 7. No-contact process Induction produces heat within the base metals — and nowhere else. It’s a no-contact process; the base metals never come into contact with flames. This protects the base metals from warping, which in turn increases yield and product quality.         https://dw-inductionheater.com/why-choose-induction-brazing.html?feed_id=243896&_unique_id=663207553ec6a

Induction Brazing Machine

Induction Brazing Machine&Soldering Equipment

Main characteristics:

    1.  IGBT module and inverting technologies of the first generation been used.

    2.  Simple structure and light weight and easy for maintenance.

    3.  Simple to operat ,afew minutes is enough to learn it.

    4.  Simple to install,installation can be done by unprofessional person very easily.

    5.  advantages of the model with timer,the power and the operatingtime of the heating period and the rain period  can be preset repectively,to realize a simple heating curve,this model is suggested to use for batch production to improve the repeatability.

   6.   The separated models are designed to fit the dirty surrounding of some cases.

Specifications：

Series	Model		Input power Max	Input current Max	Oscillate frequency	Input Voltage	Duty cycle
M . F .	DW-MF-15 Induction Generator		15KW	23A	1K-20KHZ According to the application	3*380V 380V±20%	100%
	DW-MF-25 Induction Generator		25KW	36A
	DW-MF-35Induction Generator		35KW	51A
	DW-MF-45 Induction Generator		45KW	68A
	DW-MF-70 Induction Generator		70KW	105A
	DW-MF-90 Induction Generator		90KW	135A
	DW-MF-110 Induction Generator		110KW	170A
	DW-MF-160 Induction Generator		160KW	240A
	DW-MF-45 Induction Heating Rod Forging Furnace		45KW	68A	1K-20KHZ	3*380V 380V±20%	100%
	DW-MF-70 Induction Heating Rod Forging Furnace		70KW	105A
	DW-MF-90 Induction Heating Rod Forging Furnace		90KW	135A
	DW-MF-110 Induction Heating Rod Forging Furnace		110KW	170A
	DW-MF-160 Induction Heating Rod Forging Furnace		160KW	240A
	DW-MF-15   Induction Melting Furnace		15KW	23A	1K-20KHZ	3*380V 380V±20%	100%
	DW-MF-25   Induction Melting Furnace		25KW	36A
	DW-MF-35   Induction Melting Furnace		35KW	51A
	DW-MF-45   Induction Melting Furnace		45KW	68A
	DW-MF-70   Induction Melting Furnace		70KW	105A
	DW-MF-90   Induction Melting Furnace		90KW	135A
	DW-MF-110 Induction Melting Furnace		110KW	170A
	DW-MF-160 Induction Melting Furnace		160KW	240A
	DW-MF-110 Induction Hardening Equipment		110KW	170A	1K-8KHZ	3*380V 380V±20%	100%
	DW-MF-160Induction Hardening Equipment		160KW	240A
H . F .	DW-HF-04 Series	DW-HF-4KW-A	4KVA	15A	100-250KHZ	Single phase 220V	80%
	DW-HF-15 Series	DW-HF-15KW-A DW-HF-15KW-B	15KVA	32A	30-100KHZ	Single phase 220V	80%
	DW-HF-25 Series	DW-HF-25KW-A DW-HF-25KW-B	25KVA	23A	20-80KHZ	3*380V 380V±10%	100%
	DW-HF-35 Series	DW-HF-35KW-B	35KVA	51A
	DW-HF-45 Series	DW-HF-45KW-B	45KVA	68A
	DW-HF-60 Series	DW-HF-60KW-B	60KVA	105A
	DW-HF-80 Series	DW-HF-80KW-B	80KVA	130A
	DW-HF-90 Series	DW-HF-90KW-B	90KVA	160A
	DW-HF-120 Series	DW-HF-120KW-B	120KVA	200A
U . H . F .	DW-UHF-3.2KW		3.2KW	13A	1.1-2.0MHZ	Single phase220V ±10%	100%
	DW-UHF-4.5KW		4.5KW	20A
	DW-UHF-045T		4.5KW	20A
	DW-UHF-045L		4.5KW	20A
	DW-UHF-6.0KW		6.0KW	28A
	DW-UHF-06A		6.0KW	28A
	DW-UHF-6KW-B		6.0KW	28A
	DW-UHF-10KW		10KW	15A	100-500KHZ	3*380V 380V±10%	100%
	DW-UHF-20KW		20KW	30A	50-250KHZ
	DW-UHF-30KW		30KW	45A	50-200KHZ
	DW-UHF-40KW		40KW	60A	50-200KHZ
	DW-UHF-60KW		60KW	90A	50-150KHZ

 

https://dw-inductionheater.com/induction-brazing-machine.html?feed_id=243692&_unique_id=662fe32b8b181

Brazing copper tube to brass fitting

High frequency Induction brazing copper tube to brass fitting process

Objective Induction brazing copper to brass fitting using brazing alloy and flux within 60 seconds.

Equipment 1.DW-UHF-6KW-III handheld induction heater 2 turn helical coil Materials • Brass fitting • Copper tubing • Silver brazing alloy (pre-formed) • Flux Key Parameters Temperature: Approximately 1350 °F (732°C)

Process:

1. For Induction Brazing Copper to Brass, first the copper tubing and brass fitting were assembled together.
2. A pre-form of the silver brazing alloy was seated above the joint, and flux was added.
3. The assembly was placed the two-turn helical coil, and positioned so the targeted joint was centered in the coil.
4. After 60 seconds in the coil, the brazing was complete.
5. The material was cooled in water following the completion of brazing.
6. The joint was then cross-sectioned to validate that the induction brazing process had produced a strong, high quality joint.

Results/Benefits: Induction brazing heating provides:

• Strong durable joints
• Selective and precise heat zone, resulting in less part distortion and joint stress than welding
• Less oxidation
• Faster heating cycles
• More consistent results and suitability for large volume production, without the need for batch processing
• Safer than flame brazing

https://dw-inductionheater.com/brazing-copper-tube-to-brass-fitting.html?feed_id=243162&_unique_id=662c50aa0c3fa

High frequency induction brazing steel tube to steel fitting

Objective Handheld high frequency induction brazing of a steel tube to a steel fitting Recommended Equipment The recommended equipment for this application is the DW-UHF-6KW-III handheld induction brazing heater heat station.

Materials: Steel tube to steel fitting braze using Lucas-Milhaupt Easy FLO 3 brazing alloy rings and Harris Black Brazing Flux. Power: 3.5kW to 6.6kW Temperature: 1300°F to 1400°F (704°C to 760°C ) Time: 6 to 8 Seconds  

  https://dw-inductionheater.com/high-frequency-induction-brazing-steel-tube-to-steel-fitting.html?feed_id=240961&_unique_id=6616e47156a1e

Induction Brazing Copper T Pipe With Induction Heating Machine

Objective Evaluate replacing of flame copper t pipe brazing with induction brazing. Equipment DW-HF-25kw high frequency induction heating machine

Materials

• Copper main tube – 1.13” (28.7 0mm) OD 1.01” (25.65 mm) ID • Riser tube copper – 0.84” (21.33 0mm)  OD,  0.76” (19.30 0mm)  ID Power: Power manually reduced from max output of 10kW to 15kW to provide even heat distribution on the assembly with the modified test coil. NOTE: Heat time can be improved with custom coil design. Temperature:  Approximately 704° C (1300° F) Time: 25sec

Process Steps: The copper tubes were cleaned and assembled. Two preformed alloy rings were made from available alloy in lab for the demonstration.  The wire used measured 0.787mm (0.031”) in diameter  Both the riser an base copper tubes were pre-fluxed with white braze flux. The assembly was placed in the test coil per the video bellow and the alloy flowed to form a joint at the “T” interface in 30seconds. Results and Conclusions: The target heat time for the smallest T joint assembly is 20 seconds . Using a lab test coil, we were able to effect a braze in the interface section of the tubes (copper) in 30 seconds.  

 

https://dw-inductionheater.com/induction-brazing-copper-t-pipe-with-induction-heating-machine.html?feed_id=240796&_unique_id=661576c3c085d

induction brazing steel tube to copper tube

High Frequency Induction Brazing Steel Tube to Copper Tube

Objective The goal is to braze a steel tube to a copper tube in 60 seconds using flux and brazing alloy.

Equipment DW-UHF-10kw induction brazing heater Three turns dual diameter coil Materials • Steel tube and copper receiver • Braze alloy (CDA 681) • B-1 flux Key Parameters Temperature: Approximately 1750° F (954° C) Frequency: 148 kHz

Process:

1. The assembly section was pre-assembled and fluxed (B-1) then located in the two diameter coil with a single pre-formed alloy ring set at the interface area.
2. Alloy flow and joint completed in 60 seconds.
3. The material was cooled in water following the completion of induction brazing.
4. The joint was then cross-sectioned to validate that the brazing process had produced a strong, high quality joint.

Results/Benefits:

• Strong durable joints with induction heating
• Selective and precise heat zone, resulting in less part distortion and joint stress than welding
• Less oxidation
• Faster heating cycles
• More consistent results and suitability for large volume production, without the need for batch processing
• Safer than flame brazing

https://dw-inductionheater.com/induction-brazing-steel-tube-to-copper-tube.html?feed_id=235607&_unique_id=65e65518d8a86

Brazing Cutting Tool with Induction

Brazing Cutting Tools with Induction Objective: To braze cone and shaft for a cutting tool Material Customer supplied parts Temperature indicating paint Braze preforms Temperature 1300 - 1400 ºF (704 – 760 °C) Frequency 400 kHz Equipment: DW-UHF-6kw-I, 250-600 kHz induction heating system, including remote heat station using two 0.66 μF capacitors (total 1.32 μF) A two-position, two-turn induction heating coil designed and developed specifically for this application. Process: Two sets of parts are placed in the individual coils. Braze preforms are placed on the cone at the joint. The assembled part is placed inside the induction heating coil and heated until the braze melts. Results/Benefits: efficient coil design enables simultaneous heating of two parts on the single 2kW system. dual braze is accomplished within required process time, increasing process throughput https://dw-inductionheater.com/brazing-cutting-tools-with-induction.html?feed_id=230436&_unique_id=654ccc7acb980

Brazing Cutting Tool with Induction

Brazing Cutting Tools with Induction Objective: To braze cone and shaft for a cutting tool Material Customer supplied parts Temperature indicating paint Braze preforms Temperature 1300 - 1400 ºF (704 – 760 °C) Frequency 400 kHz Equipment: DW-UHF-6kw-I, 250-600 kHz induction heating system, including remote heat station using two 0.66 μF capacitors (total 1.32 μF) A two-position, two-turn induction heating coil designed and developed specifically for this application. Process: Two sets of parts are placed in the individual coils. Braze preforms are placed on the cone at the joint. The assembled part is placed inside the induction heating coil and heated until the braze melts. Results/Benefits: efficient coil design enables simultaneous heating of two parts on the single 2kW system. dual braze is accomplished within required process time, increasing process throughput

Induction Brazing Copper T Pipe With Induction Heating Machine

Objective Evaluate replacing of flame copper t pipe brazing with induction brazing. Equipment DW-HF-25kw high frequency induction heating machine

Materials

• Copper main tube – 1.13” (28.7 0mm) OD 1.01” (25.65 mm) ID • Riser tube copper – 0.84” (21.33 0mm)  OD,  0.76” (19.30 0mm)  ID Power: Power manually reduced from max output of 10kW to 15kW to provide even heat distribution on the assembly with the modified test coil. NOTE: Heat time can be improved with custom coil design. Temperature:  Approximately 704° C (1300° F) Time: 25sec

Process Steps: The copper tubes were cleaned and assembled. Two preformed alloy rings were made from available alloy in lab for the demonstration.  The wire used measured 0.787mm (0.031”) in diameter  Both the riser an base copper tubes were pre-fluxed with white braze flux. The assembly was placed in the test coil per the video bellow and the alloy flowed to form a joint at the “T” interface in 30seconds. Results and Conclusions: The target heat time for the smallest T joint assembly is 20 seconds . Using a lab test coil, we were able to effect a braze in the interface section of the tubes (copper) in 30 seconds.  

 

Brazing Cutting Tool with Induction

Brazing Cutting Tools with Induction Objective: To braze cone and shaft for a cutting tool Material Customer supplied parts Temperature indicating paint Braze preforms Temperature 1300 - 1400 ºF (704 – 760 °C) Frequency 400 kHz Equipment: DW-UHF-6kw-I, 250-600 kHz induction heating system, including remote heat station using two 0.66 μF capacitors (total 1.32 μF) A two-position, two-turn induction heating coil designed and developed specifically for this application. Process: Two sets of parts are placed in the individual coils. Braze preforms are placed on the cone at the joint. The assembled part is placed inside the induction heating coil and heated until the braze melts. Results/Benefits: efficient coil design enables simultaneous heating of two parts on the single 2kW system. dual braze is accomplished within required process time, increasing process throughput

Why choose Induction Brazing?

Why choose Induction Brazing? Induction heating technology is steadily displacing open flames and ovens as the preferred heat source in brazing. Seven key reasons explain this growing popularity: 1. Speedier solution Induction heating transfers more energy per square millimeter than an open flame. Put simply, induction can braze more parts per hour than alternative processes. 2. Quicker throughput Induction is ideal for in-line integration. Batches of parts no longer have to be taken aside or sent out for brazing. Electronic controls and customized coils let us integrate the brazing process into seamless production processes. 3. Consistent performance Induction heating is controllable and repeatable. Enter your desired process parameters into the induction equipment, and it will repeat heating cycles with only negligible deviations. 4. Unique controllability Induction lets operators view the brazing process, something that is difficult with flames. This and precise heating minimize the risk of overheating, which causes weak joints. 5. More productive environment Open flames create uncomfortable working environments. Operator morale and productivity suffer as a result. Induction is silent. And there is virtually no increase in ambient temperature. 6. Put your space to work DAWEI Induction brazing equipment has a small footprint. Induction stations slot easily into production cells and existing layouts. And our compact, mobile systems let you work on hard-to-access parts. 7. No-contact process Induction produces heat within the base metals — and nowhere else. It’s a no-contact process; the base metals never come into contact with flames. This protects the base metals from warping, which in turn increases yield and product quality.         https://dw-inductionheater.com/why-choose-induction-brazing.html?feed_id=226786&_unique_id=64fb6204c13f5

Brazing copper tube to brass fitting

High frequency Induction brazing copper tube to brass fitting process

Objective Induction brazing copper to brass fitting using brazing alloy and flux within 60 seconds.

Equipment 1.DW-UHF-6KW-III handheld induction heater 2 turn helical coil Materials • Brass fitting • Copper tubing • Silver brazing alloy (pre-formed) • Flux Key Parameters Temperature: Approximately 1350 °F (732°C)

Process:

1. For Induction Brazing Copper to Brass, first the copper tubing and brass fitting were assembled together.
2. A pre-form of the silver brazing alloy was seated above the joint, and flux was added.
3. The assembly was placed the two-turn helical coil, and positioned so the targeted joint was centered in the coil.
4. After 60 seconds in the coil, the brazing was complete.
5. The material was cooled in water following the completion of brazing.
6. The joint was then cross-sectioned to validate that the induction brazing process had produced a strong, high quality joint.

Results/Benefits: Induction brazing heating provides:

• Strong durable joints
• Selective and precise heat zone, resulting in less part distortion and joint stress than welding
• Less oxidation
• Faster heating cycles
• More consistent results and suitability for large volume production, without the need for batch processing
• Safer than flame brazing

https://dw-inductionheater.com/brazing-copper-tube-to-brass-fitting.html?feed_id=226186&_unique_id=64f5aa994fcf8

High frequency induction brazing steel tube to steel fitting

Objective Handheld high frequency induction brazing of a steel tube to a steel fitting Recommended Equipment The recommended equipment for this application is the DW-UHF-6KW-III handheld induction brazing heater heat station.

Materials: Steel tube to steel fitting braze using Lucas-Milhaupt Easy FLO 3 brazing alloy rings and Harris Black Brazing Flux. Power: 3.5kW to 6.6kW Temperature: 1300°F to 1400°F (704°C to 760°C ) Time: 6 to 8 Seconds  

  https://dw-inductionheater.com/high-frequency-induction-brazing-steel-tube-to-steel-fitting.html?feed_id=223786&_unique_id=64e03b5596e81

induction brazing steel tube to copper tube

High Frequency Induction Brazing Steel Tube to Copper Tube

Objective The goal is to braze a steel tube to a copper tube in 60 seconds using flux and brazing alloy.

Equipment DW-UHF-10kw induction brazing heater Three turns dual diameter coil Materials • Steel tube and copper receiver • Braze alloy (CDA 681) • B-1 flux Key Parameters Temperature: Approximately 1750° F (954° C) Frequency: 148 kHz

Process:

1. The assembly section was pre-assembled and fluxed (B-1) then located in the two diameter coil with a single pre-formed alloy ring set at the interface area.
2. Alloy flow and joint completed in 60 seconds.
3. The material was cooled in water following the completion of induction brazing.
4. The joint was then cross-sectioned to validate that the brazing process had produced a strong, high quality joint.

Results/Benefits:

• Strong durable joints with induction heating
• Selective and precise heat zone, resulting in less part distortion and joint stress than welding
• Less oxidation
• Faster heating cycles
• More consistent results and suitability for large volume production, without the need for batch processing
• Safer than flame brazing

High frequency induction brazing steel tube to steel fitting

Objective Handheld high frequency induction brazing of a steel tube to a steel fitting Recommended Equipment The recommended equipment for this application is the DW-UHF-6KW-III handheld induction brazing heater heat station.

Materials: Steel tube to steel fitting braze using Lucas-Milhaupt Easy FLO 3 brazing alloy rings and Harris Black Brazing Flux. Power: 3.5kW to 6.6kW Temperature: 1300°F to 1400°F (704°C to 760°C ) Time: 6 to 8 Seconds  

 

Induction Brazing Copper T Pipe With Induction Heating Machine

Objective Evaluate replacing of flame copper t pipe brazing with induction brazing. Equipment DW-HF-25kw high frequency induction heating machine

Materials

• Copper main tube – 1.13” (28.7 0mm) OD 1.01” (25.65 mm) ID • Riser tube copper – 0.84” (21.33 0mm)  OD,  0.76” (19.30 0mm)  ID Power: Power manually reduced from max output of 10kW to 15kW to provide even heat distribution on the assembly with the modified test coil. NOTE: Heat time can be improved with custom coil design. Temperature:  Approximately 704° C (1300° F) Time: 25sec

Process Steps: The copper tubes were cleaned and assembled. Two preformed alloy rings were made from available alloy in lab for the demonstration.  The wire used measured 0.787mm (0.031”) in diameter  Both the riser an base copper tubes were pre-fluxed with white braze flux. The assembly was placed in the test coil per the video bellow and the alloy flowed to form a joint at the “T” interface in 30seconds. Results and Conclusions: The target heat time for the smallest T joint assembly is 20 seconds . Using a lab test coil, we were able to effect a braze in the interface section of the tubes (copper) in 30 seconds.  

 

Induction Brazing Machine

Induction Brazing Machine&Soldering Equipment

Main characteristics:

    1.  IGBT module and inverting technologies of the first generation been used.

    2.  Simple structure and light weight and easy for maintenance.

    3.  Simple to operat ,afew minutes is enough to learn it.

    4.  Simple to install,installation can be done by unprofessional person very easily.

    5.  advantages of the model with timer,the power and the operatingtime of the heating period and the rain period  can be preset repectively,to realize a simple heating curve,this model is suggested to use for batch production to improve the repeatability.

   6.   The separated models are designed to fit the dirty surrounding of some cases.

Specifications：

Series	Model		Input power Max	Input current Max	Oscillate frequency	Input Voltage	Duty cycle
M . F .	DW-MF-15 Induction Generator		15KW	23A	1K-20KHZ According to the application	3*380V 380V±20%	100%
	DW-MF-25 Induction Generator		25KW	36A
	DW-MF-35Induction Generator		35KW	51A
	DW-MF-45 Induction Generator		45KW	68A
	DW-MF-70 Induction Generator		70KW	105A
	DW-MF-90 Induction Generator		90KW	135A
	DW-MF-110 Induction Generator		110KW	170A
	DW-MF-160 Induction Generator		160KW	240A
	DW-MF-45 Induction Heating Rod Forging Furnace		45KW	68A	1K-20KHZ	3*380V 380V±20%	100%
	DW-MF-70 Induction Heating Rod Forging Furnace		70KW	105A
	DW-MF-90 Induction Heating Rod Forging Furnace		90KW	135A
	DW-MF-110 Induction Heating Rod Forging Furnace		110KW	170A
	DW-MF-160 Induction Heating Rod Forging Furnace		160KW	240A
	DW-MF-15   Induction Melting Furnace		15KW	23A	1K-20KHZ	3*380V 380V±20%	100%
	DW-MF-25   Induction Melting Furnace		25KW	36A
	DW-MF-35   Induction Melting Furnace		35KW	51A
	DW-MF-45   Induction Melting Furnace		45KW	68A
	DW-MF-70   Induction Melting Furnace		70KW	105A
	DW-MF-90   Induction Melting Furnace		90KW	135A
	DW-MF-110 Induction Melting Furnace		110KW	170A
	DW-MF-160 Induction Melting Furnace		160KW	240A
	DW-MF-110 Induction Hardening Equipment		110KW	170A	1K-8KHZ	3*380V 380V±20%	100%
	DW-MF-160Induction Hardening Equipment		160KW	240A
H . F .	DW-HF-04 Series	DW-HF-4KW-A	4KVA	15A	100-250KHZ	Single phase 220V	80%
	DW-HF-15 Series	DW-HF-15KW-A DW-HF-15KW-B	15KVA	32A	30-100KHZ	Single phase 220V	80%
	DW-HF-25 Series	DW-HF-25KW-A DW-HF-25KW-B	25KVA	23A	20-80KHZ	3*380V 380V±10%	100%
	DW-HF-35 Series	DW-HF-35KW-B	35KVA	51A
	DW-HF-45 Series	DW-HF-45KW-B	45KVA	68A
	DW-HF-60 Series	DW-HF-60KW-B	60KVA	105A
	DW-HF-80 Series	DW-HF-80KW-B	80KVA	130A
	DW-HF-90 Series	DW-HF-90KW-B	90KVA	160A
	DW-HF-120 Series	DW-HF-120KW-B	120KVA	200A
U . H . F .	DW-UHF-3.2KW		3.2KW	13A	1.1-2.0MHZ	Single phase220V ±10%	100%
	DW-UHF-4.5KW		4.5KW	20A
	DW-UHF-045T		4.5KW	20A
	DW-UHF-045L		4.5KW	20A
	DW-UHF-6.0KW		6.0KW	28A
	DW-UHF-06A		6.0KW	28A
	DW-UHF-6KW-B		6.0KW	28A
	DW-UHF-10KW		10KW	15A	100-500KHZ	3*380V 380V±10%	100%
	DW-UHF-20KW		20KW	30A	50-250KHZ
	DW-UHF-30KW		30KW	45A	50-200KHZ
	DW-UHF-40KW		40KW	60A	50-200KHZ
	DW-UHF-60KW		60KW	90A	50-150KHZ

 

induction brazing steel tube to copper tube

High Frequency Induction Brazing Steel Tube to Copper Tube

Objective The goal is to braze a steel tube to a copper tube in 60 seconds using flux and brazing alloy.

Equipment DW-UHF-10kw induction brazing heater Three turns dual diameter coil Materials • Steel tube and copper receiver • Braze alloy (CDA 681) • B-1 flux Key Parameters Temperature: Approximately 1750° F (954° C) Frequency: 148 kHz

Process:

1. The assembly section was pre-assembled and fluxed (B-1) then located in the two diameter coil with a single pre-formed alloy ring set at the interface area.
2. Alloy flow and joint completed in 60 seconds.
3. The material was cooled in water following the completion of induction brazing.
4. The joint was then cross-sectioned to validate that the brazing process had produced a strong, high quality joint.

Results/Benefits:

• Strong durable joints with induction heating
• Selective and precise heat zone, resulting in less part distortion and joint stress than welding
• Less oxidation
• Faster heating cycles
• More consistent results and suitability for large volume production, without the need for batch processing
• Safer than flame brazing

https://dw-inductionheater.com/induction-brazing-steel-tube-to-copper-tube.html?feed_id=218611&_unique_id=64aedfb67501c

Induction Brazing Copper T Pipe With Induction Heating Machine

Objective Evaluate replacing of flame copper t pipe brazing with induction brazing. Equipment DW-HF-25kw high frequency induction heating machine

Materials

• Copper main tube – 1.13” (28.7 0mm) OD 1.01” (25.65 mm) ID • Riser tube copper – 0.84” (21.33 0mm)  OD,  0.76” (19.30 0mm)  ID Power: Power manually reduced from max output of 10kW to 15kW to provide even heat distribution on the assembly with the modified test coil. NOTE: Heat time can be improved with custom coil design. Temperature:  Approximately 704° C (1300° F) Time: 25sec

Process Steps: The copper tubes were cleaned and assembled. Two preformed alloy rings were made from available alloy in lab for the demonstration.  The wire used measured 0.787mm (0.031”) in diameter  Both the riser an base copper tubes were pre-fluxed with white braze flux. The assembly was placed in the test coil per the video bellow and the alloy flowed to form a joint at the “T” interface in 30seconds. Results and Conclusions: The target heat time for the smallest T joint assembly is 20 seconds . Using a lab test coil, we were able to effect a braze in the interface section of the tubes (copper) in 30 seconds.