Cast Aluminum-Silicon Alloy Radiator/ Exchanger for Natural Gas Fired Boiler

Short Description:


  • Product Name: Radiator; Heat Exchanger
  • Material: Cast Silicon Aluminum
  • Casting Technology: Low-Pressure Sand Casting
  • Smelting:Intermediate Frequency Furnace
  • OEM/ODM is available according to sample or dimensioned drawings

Share
Details
Tags

Material Introduction

 

High-silicon aluminum alloy is a binary alloy composed of silicon and aluminum, and is a metal-based thermal management material. The high-silicon aluminum alloy material can maintain the excellent properties of silicon and aluminum, does not pollute the environment, and is harmless to the human body. The density of high-silicon aluminum alloy is between 2.4~2.7 g/cm³, and the coefficient of thermal expansion (CTE) is between 7-20ppm/℃. Increasing the silicon content can significantly reduce the density and thermal expansion coefficient of the alloy material. At the same time, high-silicon aluminum alloy also has good thermal conductivity, high specific stiffness and rigidity, good plating performance with gold, silver, copper, and nickel, weldable with the substrate, and easy precision machining. It is an electronic packaging material with broad application prospects.

The manufacturing methods of high-silicon aluminum alloy composite materials mainly include the following: 1) smelting and casting; 2) infiltration method; 3) powder metallurgy; 4) vacuum hot pressing method; 5) rapid cooling/spray deposition method.

Production Process


1) Melting and casting method

The equipment for smelting and casting method is simple , low cost, and can realize large-scale industrial production, and it is the most extensive preparation method for alloy materials.

2) Impregnation method

The impregnation method consist of two methods: pressure infiltration method and pressureless infiltration method. The pressure infiltration method uses mechanical pressure or compressed gas pressure to make the base metal melt immerse into the reinforcement gap.

3) Powder metallurgy

Powder metallurgy is to disperse a certain proportion of aluminum powder, silicon powder and binder uniformly, mix and shape the powders by dry pressing, injection and other methods, and finally sinter in a protective atmosphere to form a denser material.

4) Vacuum hot pressing method

The vacuum hot pressing method refers to a sintering process in which pressure forming and pressure sintering are carried out at the same time. Its advantages are: ①The powder is easy to plastically flow and densify; ②The sintering temperature and sintering time are short; ③The density is high. The general process is: under vacuum conditions, the powder is placed in the mold cavity, the powder is heated while being pressurized, and a compact and uniform material is formed after a short time of pressurization.

5) Rapid cooling/spray deposition

Rapid cooling/spray deposition technology is a rapid solidification technology. It has the following advantages: 1) no macro-segregation; 2) fine and uniform equiaxed crystal microstructure; 3) fine primary precipitation phase; 4) low oxygen content; 5) improved thermal processing performance.

Classification


(1) Hypoeutectic silicon aluminum alloy contains 9%-12% silicon.

(2) Eutectic silicon aluminum alloy contains 11% to 13% silicon.

(3) The silicon content of hypereutectic aluminum alloy is above 12%, mainly in the range of 15% to 20%.

(4) Those with a silicon content of 22% or more are called high-silicon aluminum alloys, of which 25%-70% are the main ones, and the highest silicon content in the world can reach 80%.

Application


1) High-power integrated circuit packaging: high-silicon aluminum alloy provides effective heat dissipation;

2) Carrier: It can be used as a local heat sink to make the components more closely arranged;

3) Optical frame: high silicon aluminum alloy provides low thermal expansion coefficient, high rigidity and workability;

4) Heat sink: High silicon aluminum alloy provides effective heat dissipation and structural support.

5) Auto parts: High-silicon aluminum alloy material (silicon content 20%-35%) has excellent tribological properties, and can be used as an advanced lightweight wear-resistant material for use in various transportation tools, various power machinery, and machine tools. , Special fasteners and tools have been widely used.

High-silicon aluminum alloy has a series of advantages such as small specific gravity, light weight, good thermal conductivity, low thermal expansion coefficient, volume stability, good wear resistance, and good corrosion resistance, and is widely used as cylinder liners, pistons, and rotors of automobile engines. , Brake discs and other materials.

 

If you are interested in our products, you can choose to leave your information here, and we will be in touch with you shortly.


Write your message here and send it to us
Products categories
  • LD Type Heat Exchanger made from cast silicon aluminum  for heating furnace/water heater

    Short Description:

    Product Specification: 80KW,99KW,120KW;

    For small floor-standing condensing boilers/heaters and volumetric condensing water heaters;

    Compact and reliable design , light weight;

    3waterways Parallel design,small water resistance;

    Reverse flow of flue gas and water to enhance heat exchange;

    Monoblock casting, one-time molding, long life


  • fully premixed cast silicon aluminum heat exchanger for commercial boiler(L type)

    Short Description:

    • Product Specification: 500KW, 700KW, 1100KW, 1400KW, 2100KW;
    • The surface area of the combustion chamber is 50% larger than other similar products, the inner surface temperature of the combustion chamber is lower, and the distribution is more uniform;
    • The water channel around the combustion chamber adopts a rotary design, which structurally avoids the phenomenon of dry burning during the exchanger being used;
    • The water volume of the heat exchanger body is 22% larger than other similar products, and the cross-sectional area of the water channel is significantly increased;
    • The chamfering of the water channel is optimized by computer simulation, resulting in lower water resistance and reduced possibility of limescale;
    • The unique design of the diversion groove inside the water channel increases the area of the heat exchanger, enhances the turbulent flow effect, and strengthens the internal heat transfer.
  • fully premixed cast silicon aluminum heat exchanger for commercial boiler(M type)

    Short Description:

    • Product Specification: 150KW, 200KW, 240KW, 300KW, 350KW;
    • Compact structure, high density, and high strength;
    • Separate detachable water channel;
    • Thermal conductive fin column design, strong heat exchange capacity;
    • Unique water channel design with low resistance;
    • Cast from silicon aluminum magnesium alloy, High heat exchange efficiency, strong corrosion resistance, economical and durable.
  • cast silicon aluminum heat exchanger for household heating furnace/water heater(JY type)

    Short Description:

    Product Specification: 28KW,36KW,46KW;

    Compact and reliable structure, high power, light weight, specially designed for domestic gas heating.;

    The internal waterway is large channel , the water flow is much more smooth, which is conducive to the overall heat exchange;

    There is a cleaning port installed on the side, which can easily clean the dust and prevent clogging;

    Integrated casting silicon aluminum magnesium alloy material, the material has strong corrosion resistance;

    High-end design with large-scale production, the price is internationally competitive.


  • Cast Aluminum-Silicon Alloy Radiator/ Exchanger for Natural Gas Fired Boiler

    Short Description:


    • Product Name: Radiator; Heat Exchanger
    • Material: Cast Silicon Aluminum
    • Casting Technology: Low-Pressure Sand Casting
    • Smelting:Intermediate Frequency Furnace
    • OEM/ODM is available according to sample or dimensioned drawings
  • Hydraulic Coupler, Pump Wheel, Gland, End Cap, Aluminum Casting Service, Made in china

    Short Description:

    • Product Name: Hydraulic Coupler, Pump Wheel, Gland, End Cap
    • Material: Cast Aluminum, Silicon-Aluminum Allloy
    • Casting Process/Technology: Low/High-Pressure Casting

     

     

If you are interested in our products, you can choose to leave your information here, and we will be in touch with you shortly.