Bimetallic Sheet

2024-09-04 by Cherry 

Relationship between bimetallic sheets and die-casting

machines

In the field of industrial manufacturing, the combination 

of bimetallic sheets and die-casting machines show great

potential. Whether it is the design of the die-casting mold

or the performance of the final product, bimetallic sheets

play a key role. 

This article will explore the application of bimetallic 

strips in the die-casting process and explain how it 

affects the working efficiency and product quality of the

die-casting machine.

What is a bimetallic sheet?

A bimetallic sheet is a composite material made by combining

two different metal materials through a specific process. 

Usually, the two metals of a bimetallic sheet have different

physical or chemical properties, such as one metal with strong

wear resistance and the other metal with good thermal conductivity.

Due to the different thermal expansion coefficients of different

metals, when the temperature changes, the bimetallic sheet will

bend and deform. 

By combining these characteristics, bimetallic sheets can provide

unique performance advantages in a variety of application scenarios

such as temperature measurement and control.

Bimetallic sheets usually have the following characteristics:

1. High sensitivity: able to respond quickly to small temperature

changes.

2. Strong reliability: After a strict manufacturing process, 

it has a long service life.

3. High precision: can accurately measure and control temperature.

Application of bimetallic sheets in die casting process

In the die-casting process, the life and performance of the mold

are crucial. Traditional die-casting molds are usually made of

a single metal, which may cause wear and deformation of the mold 

under high temperature and high-pressure conditions. 

The application of bimetallic sheets provides an innovative solution.

By using bimetallic sheets in key parts of the mold, the durability 

of the mold can be effectively improved. 

For example, a metal with stronger wear resistance can be used

on the surface of the mold, while a metal with better thermal 

conductivity can be used inside. 

This structure can significantly reduce the wear of the mold

while improving the efficiency of heat conduction, thereby 

extending the service life of the mold.

How bimetallic sheets affect the performance of die-casting machines

The efficiency and product quality of die-casting machines depends 

to a large extent on the performance of the mold. 

Molds made with bimetallic strips can maintain stability under

higher pressures and temperatures, which enables die-casting

machines to work more efficiently.

1. Improve product accuracy: The high wear resistance and 

high thermal conductivity of bimetallic sheet molds ensure 

that the shape of the mold 

remains unchanged during each die-casting process, thereby

improving the dimensional accuracy and surface quality of the product.

2. Extend mold life: The extended life of the mold means less 

downtime and lower maintenance costs, which directly improves 

the production efficiency of the die-casting machine.

3. Energy saving and consumption reduction: By improving the efficiency

of heat conduction, bimetallic strip molds can reduce the

heating time and energy consumption required in the die-casting 

process. This not only helps to reduce production costs but also

meets the environmental protection requirements of modern industry.

The manufacturing process of bimetallic sheets

The manufacturing of bimetallic sheets usually involves a variety

of processes such as explosive welding, rolling, and heat treatment.

These processes ensure the integrity and performance stability of 

the two metals after they are combined. 

For example, explosive welding combines two metals through

the instantaneous release of high energy to form a bimetallic 

sheet with high bonding strength.

Subsequently, through processes such as heat treatment, the performance

of the bimetallic strip can be further optimized to make it more 

suitable for the production of die-casting molds.

Advantages and disadvantages of bimetallic sheet

Although bimetallic strips have significant advantages in the

die-casting process, there are also some challenges. First, 

the production cost of bimetallic strips is relatively high,

especially when high precision and high performance are 

required. In addition, since bimetallic strips are composed 

of two different metals, stress concentration problems may

occur at the material interface during use, leading to potential

cracking risks.

However, these disadvantages can be overcome through advanced 

manufacturing technology and scientific design. For example, in

mold design, the reasonable selection of the material combination

and thickness ratio of the bimetallic strip can effectively 

reduce stress concentration and extend the life of the mold.

Application cases of bimetallic sheets in die-casting machines

To better illustrate the application of bimetallic

sheets in die-casting machines, a practical case is introduced below.

A certain automobile parts manufacturing company uses a die-casting 

machine to produce aluminum alloy automobile wheels. During the

production process, it was found that the quality of the wheel 

was unstable, and defects such as pores and shrinkage holes often 

occurred. 

After analysis, it was found that the problem was the temperature 

control of the die-casting machine. Due to the large 

temperature fluctuations, the fluidity of the metal was uneven, 

which affected the quality of the casting.

To solve this problem, the company used a bimetallic strip 

temperature sensor to monitor the temperature of the furnace and

mold of the die-casting machine. By adjusting the heating power 

in real-time, the temperature is kept within a stable range.

At the same time, a bimetallic strip safety protection device is

also installed. When the temperature exceeds the safety limit, 

the power supply is automatically cut off to avoid accidents.

After a period of operation, the company found that the quality

of the wheel has been significantly improved and the scrap rate

has been greatly reduced. At the same time, due to more precise

temperature control, energy consumption has also been reduced,

which has brought significant economic benefits to the company.

Future Development Direction

With the continuous advancement of science and technology,

the application prospects of bimetallic strips in die-casting

processes are broad. 

In the future, with the development o

new materials and new processes, the performance of bimetallic 

strips will be further improved, and their application in 

die-casting molds will be more extensive. In addition, with the

automation and intelligent development of die-casting processes, 

the manufacture and use of bimetallic strip molds will be more

efficient, bringing more innovations and changes to the die-casting

industry.

Summary

As an important industrial component, bimetallic strips play 

a key role in die-casting machines. It can not only achieve

precise temperature control, improve the quality and production

efficiency of castings but also serve as a safety protection

element to ensure the safety of operators. 

The application of bimetallic strips in die-casting machines

provides new possibilities for improving the efficiency of 

die-casting processes and product quality. 

By combining the advantages of different metals, bimetallic sheet

molds can maintain stability and durability in high-pressure

and high-temperature working environments, greatly extending

the service life of the mold and reducing production costs. 

At the same time, with the continuous advancement of technology,

the application of bimetallic strips in the die-casting industry

will be more extensive, bringing more innovation and development

to the manufacturing industry.

In the future, as the die-casting process continues to develop,

bimetallic strips will continue to play their unique advantages 

and bring more possibilities to the die-casting industry. 

By continuously exploring new materials and new processes, the

efficiency and product quality of die-casting machines will 

be further improved to meet the growing market demand.

For more info, you can refer to: 

https://www.tiktok.com/@lk_diecastingmachine/video/7405113006880820522 

https://www.youtube.com/shorts/JLX410QV_kw

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