17/5000 Medical aluminum stretching treatment must pay attention to these 6

Views:1338 Author:Site Editor Publish Time:2020-06-24 13:59:53 Orgin:Site

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The use of medical aluminum materials in industrial automation assembly lines is becoming more and more common, and the shapes of processed special-shaped medical aluminum materials are also diverse. So what should we pay attention to when stretching medical aluminum materials? Let's understand it together!

     1. Medical aluminum materials should not rub against each other, pull, overlap, crowd, or surround each other during the process of taking materials, moving and stretching, and a certain distance should be reserved between each other. For medical aluminum materials that are easy to bend and discharge out of right and wrong It should be dealt with in a timely manner, and if necessary, do a good job of maintenance and treatment between each other.

     2. The stretching of medical aluminum must be done after the medical aluminum has cooled to below 50 degrees (bare hands can hold it tightly) before it can be moved to the stretching rack for stretching work. If the temperature is too high, stretching will burn the human body and burn the body. Bad tops, and because the internal stress of medical aluminum can not be completely eliminated, it will show twists, twists, poor functions and other finished products before and after aging.

     3. Because wool tops have the effect of heat resistance and draping, medical aluminum materials with high decorative surface requirements must be turned up and down to facilitate uniform heat dissipation and reduce lateral bright spots caused by uneven heat dissipation and different crystallinity, especially More attention should be paid to medical aluminum materials with large width and thicker walls.

     4. Pay attention to the force of small feet, thin teeth, long legs, arc surfaces, inclined surfaces, openings, angles, etc. of profiles with high aspect ratio, long overhangs, large arcs, different wall thicknesses, and weird shapes. situation, to avoid local or point-like dimensional deformation of the profile, twisting, spiral and other defects.

     5. The amount of stretching should be controlled at about 1%. For example, the stretching amount of 25M medical aluminum should be stretched about 25CM after straightening the profile, but it must not exceed 2%. Production should be based on aluminum extrusion profiles The actual situation of the material is adjusted with various specific requirements (opening size, nominal quality, external size, inner diameter, wall thickness, elongation, etc.) Elongation. Excessive stretching will cause head, middle and tail size deviation, nominal water-like twist (fish scale) marks, low elongation, high hardness and brittleness (low plasticity). Too low stretching will make the profile compressive strength And the hardness is low, even the aging (quenching) can not improve the hardness, the profile is easy to bend in a curved shape (commonly known as the big knife bend).

     6. In order to control the amount of tensile deformation and better control the size change of the entire profile, it is necessary to adopt suitable special clamps and suitable methods. Especially for open materials, arc materials, cantilever materials, and profiles with curved shapes More attention should be paid to the reasonable and effective use of stretch clamp pads. If necessary, someone should hold the righting or plug pad next to the stretch profile to ensure that the stretch size between the head, middle and tail sections meets the requirements of medical aluminum materials.

     The company is a company specializing in the production and sales of medical aluminum products and medical aluminum accessories. At the same time, it provides mold opening and customized processing of various specifications of medical aluminum products. It can be used according to different medical aluminum materials and provide professional profile selection. The manual is for reference only. Medical aluminum is light in weight, high in strength, corrosion-resistant, etc., and is generally used in wheelchairs, stretchers, nursing beds, medical accompanying chairs, and medical equipment.