Advanced Heat Treatment Solutions for LPG Cylinders in Industry

Product Description

The heat treatment process of liquefied petroleum gas (LPG) cylinders is a crucial step in their creation. This essential procedure is meticulously crafted to eradicate internal stress from the material, refine the metallographic structure, and significantly enhance the mechanical properties and pressure resistance strength of the cylinders. Compliance with stringent national standards such as GB/T 5842 and ISO 22991 is imperative to guarantee the robustness, safety, and extended service life of these gas cylinders.
1. Purpose of Heat Treatment
Eliminating Residual Stress: Through high-temperature tempering or normalizing treatment, internal stress resulting from welding or cold working is effectively eliminated, preventing the risk of stress corrosion cracks.
Refine the Grain Structure: The toughness and impact resistance of steel are enhanced, enabling it to withstand cyclic loads in high-pressure environments, thus offering superior durability.
Stable Size: Reduces the likelihood of deformation during future use, ensuring consistent performance and reliability.
2. Typical Process Parameters
Heating Temperature: Typically ranges between 880-920ºC for normalizing or 600-650ºC for tempering. Precise adjustments align with material specifications like HP295 and HP345.
Heat Preservation Time: Calculated based on cylinder wall thickness, generally 1.5 to 3 minutes per mm, ensuring thorough and uniform heat penetration for optimal results.
Cooling Method: Normalizing involves air cooling, whereas post-tempering requires gradual cooling to room temperature to prevent secondary stress.
3. Quality Control Requirements
Hardness Testing: Confirms that post-treatment cylinder body hardness does not exceed HB220, ensuring excellent processing performance.
Mechanical Property Testing: Conducts tensile and impact tests to ensure tensile strength and elongation precisely meet established standards.
Non-Destructive Testing: Implements comprehensive inspection using magnetic particle or ultrasonic methods to eliminate both surface and internal defects.
4. Precautions
Regular Calibration: Ensures uniformity in furnace temperature, maintaining deviation within ±10ºC for consistent heat treatment.
Strict Compliance: Avoids exceeding specified temperatures or shortening hold times to prevent material overburning or underperformance.
Environmental Control: Maintains optimal humidity levels to prevent oxidation and decarburization during high-temperature stages.
By leveraging scientifically validated heat treatment processes, LPG cylinders achieve a design life expectancy of 30 years, ensuring their safety and reliability in gas storage and transportation applications.
5. Customized Services:
Tailor-made Solutions: Offers personalized adjustments to parameters and functions based on customer requirements, ensuring the equipment meets diverse process demands with precision.



 

Product Parameters

Main technical parameter
1.	Power motor power	4KW/5.5KW
2.	Productivity	180-240pcs/hour(15KG cylinder)
3.	Feeding way	Chain transmission or pneumatic cylinder feeding
4.	Fuel medium	Natural gas or liquefied gas
5.	Working temperature	0-1350 degrees
6.	Cylinder feeding speed	Frequency control
7.	Burner	Italian Lirau brand,  400,000 BTU burner

Company Profile

 

Our Factory

 

Our Team

 

Certifications

 

Packaging & Shipping

 

FAQ

 

Q1: Do I need to pay deposit when contract is done?
Yes, 30% deposit. Delivery time within 20~50days after deposit payment.

Q2: Can you provide OEM service?
Yes, we can. We can print or engrave your logo on products.

Q3: How can I contact you?
Please contact us by Email, Whatsapp and Phone, also warmly welcome you to visit our company at your convenience.

Q4: How to guarantee your quality?
1.Strictly control the production process to ensure that every step meets the standards.
2. Conduct regular quality inspection to find and solve problems in time.
3. Strengthen staff training, improve operation standards and quality awareness.
4. Use high-quality raw materials to ensure product quality from the source.
5. Establish a sound feedback mechanism to continuously optimize products.

Q5:Can you do different countries market?
Of course we can. We export to Southeast Asia, the Middle East and Africa and other more than 40 countries and regions.

Q6:How about the shipping and shipping fee?
We can deliver it to your nearest port through different modes of transportation. And the shipping fee depends on your location.

Q7:What's your advantage?
We have a strong technical force and advanced production equipment, has passed the ISO9001:2000 international quality management system certification, obtained the certification and honor of the measurement qualification verification unit, contract-abiding and trustworthy enterprises, key industrial enterprises and high-tech enterprises, and has won more than 20 invention patents, 15 authorized patents, 2 software Copyrights. Over the years, on the basis of advanced technology at home and abroad, we have researched and developed various products with stable performance, good quality, safety and reliability. At the same time, it can be customized according to the needs of users, develop products suitable for different national markets, products sell well in the country and Southeast Asia, the Middle East and Africa and other more than 40 countries and regions, with professional technology to create high-quality products, and provide professional pre-sales consulting and after-sales service.

Q8:What services do you offer?
We can customize the LPG cylinder production equipmentaccording to your requirements, Our factory technicians are responsible for guiding installation and commissioning of the whole set of equipment to ensure that each process can operate normally.