Local heating device for pipes
A local heating and tube technology, applied in heat treatment furnaces, furnace types, heat treatment equipment, etc., can solve problems such as cracking of parts, low yield, and failure to achieve local heat treatment, and achieve fast heating, uniform heating, and high stability. Effect
Inactive Publication Date: 2017-01-04
HARBIN HONGWANZHI SCI & TECH DEV
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Problems solved by technology
When heat treating pipe parts, due to its small effective heating area and volume, the heat conduction is too fast during the heating process, and the heating area is not easy to control, especially in the local annealing process. It is often easy to exceed the set annealing area. Uneven heating can easily cause excessive local temperature differences. Often, some areas are lower than the set temperature of heat treatment, while the temperature of other areas is too high, which may even cause parts to crack and fail to meet the requirements of local heat treatment. , the control of heat treatment process is not accurate, the repeatability is poor, the operation process is often only based on the experience of workers, the product quality stability is poor in mass production, and the yield rate is low
Therefore, the existing local heat treatment methods for pipe parts are still not ideal enough to meet the needs of production and use.
Method used
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Embodiment 1
[0013] A local heating device for pipes, including a base, a bracket seat, a transmission shaft, a heater and a fixing frame, and the base 1 There is a bracket seat on the top, and the bracket seat is the left side bracket seat 2 and right bracket 3 , the left bracket seat of the 2 with right bracket 3 slides between 4 , the left bracket seat of the 2 available on the slide 4 slides freely on the left side of the bracket 2 transmission shaft 5 , the propeller shaft 5 heater on top 6 ; said right slide 3 fixed to the base 1 Right side, said right side bracket seat 3 With circular slot 7 , the top of the right bracket seat is provided with a support frame 8 , the support frame 8 There is a curved bracket below 9 。
Embodiment 2
[0015] The curved bracket 9 There are two and are located on the drive shaft 5 on both sides, the arc direction is towards the drive shaft 5 。
Embodiment 3
[0017] the slide 4 the length of the base 1 half the length.
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A local heating device for pipes comprises a base, support seats, a drive shaft, a heater and a fixing frame and is characterized in that the support seats are arranged on the base and comprise a left support seat and a right support seat, a slideway is arranged between the left support seat and the right support seat, the left support seat can freely slide on the slideway, and the right support seat is fixed on the right side of the base; the drive shaft is arranged on the left support seat, and the heater is arranged at the top end of the drive shaft; a round inserting slot is formed in the right support seat, a support frame is arranged at the top of the right support seat, and an arc-shaped fixing frame is arranged below the support frame. The local heating device has the advantages that the heating part is uniformly heated through the heater during heating, pipe parts are heated rapidly, and the stability is high.
Description
technical field [0001] The invention relates to a heating device for pipes, in particular to a local heating device for pipes. Background technique [0002] At present, most heat treatment devices are only suitable for overall treatment of workpieces, and there are few methods and devices for partial heat treatment of workpieces. Especially for local heat treatment of pipe parts, it is still an unbroken technical problem. When heat treating pipe parts, due to its small effective heating area and volume, the heat conduction is too fast during the heating process, and the heating area is not easy to control, especially in the local annealing process. It is often easy to exceed the set annealing area. Uneven heating can easily cause excessive local temperature differences. Often, some areas are lower than the set temperature of heat treatment, while the temperature of other areas is too high, which may even cause parts to crack and fail to meet the requirements of local he...
Claims
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IPC IPC(8): C21D9/08
Inventor 王雷
Owner HARBIN HONGWANZHI SCI & TECH DEV