In the current society, electric wheelchairs, as an emerging slow-speed means of transportation, have gradually been recognized by many elderly people and disabled people. With the progress of society and the development of science and technology, the types and configurations of electric wheelchairs have become More and more, in terms of materials alone, there are many types, such as carbon steel, aluminum alloy, magnesium alloy, and higher-grade carbon fiber, aerospace titanium aluminum alloy, etc. So when faced with so many different materials, we How to choose a cost-effective electric wheelchair? What material is better for electric wheelchairs?
First of all, what we need to know is that each group and user’s own situation and usage environment are different, which also leads to the differentiation of purchased products. In this differentiated demand, we will give you from the following aspects Some suggestions and clarifications.
Common materials are mainly divided into carbon steel, aluminum alloy, aerospace titanium aluminum alloy and magnesium alloy. We will not talk about carbon fiber for now (high price and few applications);
1. Carbon steel material:
Carbon steel frames are mainly used in heavy-duty wheelchairs and some brands produced by small factories. Heavy-duty wheelchairs use steel frames to enhance the hardness of the body and driving stability. For example, the frames of many large trucks are steel frames. For the same reason, cars can use aluminum. Wheelchairs produced in small factories use steel frames because this requires lower processing and welding processes and is cheaper to build.
2. Aluminum alloy & titanium aluminum alloy
Aluminum alloy and titanium-aluminum alloy, these two material frames occupy the vast majority of the market for electric wheelchairs. They are two different types of aluminum materials, 7001 and 7003, which means other different mixed materials are added to the aluminum materials. Made of stainless steel, their common characteristics are low density and high strength, good plastic resistance and corrosion resistance. To put it more intuitively, they are light, strong and easy to process, while titanium-aluminum alloy has higher strength and corrosion resistance. It is widely used in the aerospace field, so it is also called aerospace titanium aluminum alloy. Because titanium has a very high melting point, which can reach 1942 degrees, which is more than 900 degrees higher than gold, its processing and welding are naturally very difficult. It cannot be manufactured by ordinary small processing plants, so aviation titanium aluminum Wheelchairs made of alloy are more expensive. When choosing a purchase, the former is suitable for users with low frequency of use, good road surface and driving environment, while users with high frequency of use, frequent transportation, and frequent driving on potholes and bumpy roads can choose titanium-aluminum alloy wheelchairs. .
3. Magnesium alloy
Magnesium alloy is an alloy based on magnesium and added with other elements. Its characteristics are: low density, high strength, large elastic modulus, good heat dissipation, good shock absorption, and greater ability to withstand impact loads than aluminum alloys. Currently, magnesium-aluminum alloys are widely used. It is a relatively light metal among practical metals. The specific gravity of magnesium is about 2/3 of aluminum and 1/4 of iron. The purpose of using magnesium alloy for the wheelchair frame is to achieve a lighter weight based on aluminum alloy. quantification” purpose.
The above are several common wheelchair frame materials. You can choose according to your own use environment and your own situation.
Post time: Mar-04-2024