Induction Post Weld Heat Treatment (PWHT)
- 1000 Set / Sets per Month
- T/T L/C
- Universal Instant Boiler Good Price Home Appliance Stainless Steel Gas Water Heater
- Tankless Hot Water Heater Instant Gas Water Heater Geyser Boiler For Bath Shower
- Portable Instant LPG/NG Stainless steel Gas Hot Water Heaters zero water pressure gas geyser Wall mounted Geyser
- High Quality Wall Mounted Natural Gas Tankless Natural Gas Water Heater /boiler/Geyser
- Electric instant kitchen water heater gas geysers electric water heater boiler for shower
- Instantaneous Electric Heating Shower Heater Bathroom Instant Electric Water Heater Electric Tankless Hot Water Heater
Product Details
Brand Name: | JKZ | Place of Origin: | China |
Product Description
Local post weld heat treatment (PWHT) is a stress release process by heating the welded zone after the workpiece is welded, which is an indispensable step to ensure the welding quality. Usually, this kind of post weld heat treatment procedure/processs is done with the induction heating machine. Take JKZ's induction heating devices as examples. These devices will normally first heat the workpiece at the temperature of 100-150 degrees/hour and they will gradually reach the target temperature at 650-780 degrees according to different metal material features. All the processes will be completed perfectly in accordacne with the pre-set heating time and pwht recorder temperature. The temperature recorder will record the temperature curve and feedback the data to the control system. Due to the need for strict requirements of the heating time and temperature control, the high degree of automation of induction heating equipment have successfully made itself locate at a very important position in all kinds of PWHT post weld heat treatment machine. In addition to general equipment, JKZ also specializes in the post-weld heat treatment for pipes, plates, tanks and large-size heterogeneous workpieces. Two specially designed air-cooled induction heating systems can be flexibly custmoized according to your choices.
Features of Induction Post Weld Heat Treatment
1.Wide and even heating zone
The width is sufficient to cover the uniform heating zone of the post-weld heat treatment specified by ASME.
2.High-precision temperature control
Frequency conversion control power supply can realize precise heating/heat preservation/cooling steps.
3.High security
Unlike annealing of resistance heating elements, non-heated induction coils ensure a high degree of safety.
4.Easy installation
One-button operation coil (the built-in coil piece is placed around the pipe), which is easier to fix and disassemble than the induction coil wound on the pipe.
Post Weld Heat Treatment Methods
1.Furnace: In the post-weld heat treatment of the furnace, the entire part is usually placed in the furnace to apply a temperature cycle. Obviously, this means that the parts or structure cannot be too large to fit into the furnace. In addition, the components must be moved to the location where the furnace is located. The main advantage of this post-weld heat treatment is that the variable expansion caused by excessive thermal gradients can be kept to a minimum. For this reason, heating and cooling rates are important because thicker parts tend to take longer to heat or cool than thinner parts.
2.Internal firing: In this method, the part is insulated on the outside, and then heat is introduced into the part until the entire part is heated to the desired temperature. Heat is usually introduced by gas burners. Obviously, this only applies to "hollow" type components, such as pressure vessels.
3. Localized external heating: This post-weld heat treatment method is suitable for slender parts that only need to be heated in a local area instead of the entire part. This is a typical pipe girth weld or closed weld used for long pressure vessels. In this method, a certain component introduces heat to the outside of the component (sometimes the component is placed inside and outside to help uniform heating), usually in a band around the entire circumference of the component. Proper insulation can prevent heat from dissipating from the surface through convection and radiation.
If you want to know more types of pwht, please visit our website.
As one of post weld heat treatment equipment manufacturers, we have types of related products for sale, if you have needs, please contact us.
As one of mature induction heating equipment manufacturers in China, JKZ has already established our own system of product R&D, manufacturing, marketing and after-sale service. Our products are widely used in welding, hot forging, hardening, melting, heat treating, etc.
Contact Us
- Chengdu Jinkezhi Electronic Co., Ltd
- Contact nameYang Jun
- AddressNO.688th South baoguang Road, Xindu District Chengdu,Sichuan
- Instantaneous Electric Heating Shower Heater Bathroom Instant Electric Water Heater Electric Tankless Hot Water Heater
- 16L wall mounted electric water heater boiler for kitchen and shower hot water
- 8l 10l 12l 16l boiler wall mounted calentador de agua a gas mini gas water heater digital constant gaz gas water heater
- 16l Instant Shower Water Heater Gas Bathroom Wall Heaters Induction Hot Water Heater
- 6l/8l/12l/14l/16l/20l/24l Wholesale Price Portable Gas Water Heater Gas Water Heater Gas Boiler
- 20kw 24kw 28kw 30kw 32kw Wall Hung Heating Wall Mounted Gas Boilers Lpg Tankless Propane Gas Water Heater
- 16L wall mounted electric water heater boiler for kitchen and shower hot water
- wall mounted electric water heater boiler for kitchen and shower hot water
- IXP4/CE,EMC /GS 2000w electric heater
- IXP4/CE,EMC /GS 500W/1000W electric heater
- IXP4/CE,EMC /GS 750W/1500W electric heater
- IXP4/CE,EMC /GS 1250W/2500W electric heater
- IXP4/CE,EMC /GS 1000W/2000W electric heater
- IXP4/CE,EMC /GS 750W/1500W electric heater
- IXP4/CE,EMC /GS 500W/1000W electric heater
- IXP4/CE,EMC /GS 250/500w electric heater
- Mini PTC ceramic heater 01
- Portable Electric Blanket for Winter/ Europe Wholesale Electric Blanket/
- 12V Vehicle Electric Blanket/ Car Use Electric Blanket/ Sport 12V Car Electric Blanket/ Fleece 12V Vehicle Electric Blanket/ Portable 12V Car Electric Blanket/
- Large Electric Blanket/ Full Body Electric Blanket/ Living Room Electric Blanket/ Bedroom Electric Blanket/ Timer Setting Electric Blanket/ Extra Soft Winter Electric Blanket/ Double Side color Electric Blanket/ Overheating Protection Electric Blanket/
- Large Electric Blanket/ Winter Large Eletric Blanket/ TEMP Control Electric Blanket/ Temperature Control Electric Blanket/ Washable Electric Blanket/ 3 Heat Level USB Electric Blanket/ Coral Fleece Winter Large Electric Blanket/
- HOT SALE Electric Blanket/ USB Shawl Electric Blanket/ USB Electric Heating Small Blanket/ USB Electric Heating Cloak/ Portable Electric Heating Shawl//
- Electric Blanket/ Double Soft Velvet Blanket/ Blanket Heater/ Quick Heating Electric Blanket/
- Hot Sell Smart Electric Heater AI Adjust Temperature Heater Fan PTC AI Electric Heater
Popular Searches
Find Similar Products By Category
- Home Appliances > Home Heaters > Electric Heaters
- Buy on GoldSupplier.com
- How to Buy
- Browse by Catagories
- Browse by Hot Regoins
- Private Sourcing Events
- Sell on GoldSupplier.com
- How to Sell
- Post Products
- Manage Products
- Manage Groups
- About
- About Us
- Link to Us
- Contact Us
- Sitemap
- Please Enter your Email Address
- Please enter the content for your inquiry.
We will find the most reliable suppliers for you according to your description.
Send Now-
Yang Jun
Welcome to my shop! Glad to serve you!Please send your question!
Your message has exceeded the limit.
Your message has exceeded the limit.
-
-
Your inquiry content must be between 20 to 5000 characters.Send Now.
-
Please input the mailbox.
-