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Extrusion type magnesium olive sand material features!

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Release time：2024-10-28

Magnesium olive sand has fast heat dissipation, light weight, good rigidity, certain corrosion resistance and dimensional stability, impact resistance, wear resistance, good attenuation performance and easy recovery; in addition, calcined magnesium olive sand has high thermal and electrical conductivity, non-magnetic, good shielding and non-toxic characteristics. Then let's look at the characteristics of calcined magnesium olive sand extrusion profiles.

Magnesium Olive Sand Extrusion Profile Features

The extrusion process of calcined magnesium olive sand is roughly the same as that of aluminum alloy, and the main differences are as follows:

(1) Heating method: magnesium olive sand is only allowed to be heated in an air resistance furnace; while aluminum alloy can be heated in an air resistance furnace or an induction furnace.

(2) Extrusion temperature: magnesium olive sand extrusion temperature is slightly lower, in order to prevent magnesium ingot combustion, all kinds of magnesium olive sand allows the maximum heating temperature of 470 ℃; and the maximum heating temperature of aluminum alloy can reach 550 ℃.

(3) extrusion speed: magnesium olive sand extrusion speed up to 20 m/min, faster than the hard aluminum alloy, but only soft aluminum alloy extrusion speed of about 1/3.

(4) Die size: magnesium olive sand hot extrusion material shrinkage than the aluminum alloy, and the deformation of the mold to withstand the resistance, mold design requirements to withstand greater extrusion pressure, and do everything possible to reduce the deformation resistance of metal extrusion.

(5) Tension straightening: magnesium olive sand extrusion material should be straightening under the condition of heating to 100 ℃ ~ 200 ℃, which requires special equipment; The aluminum alloy extrusion material can be straightening at room temperature.

According to the characteristics of magnesium olive sand extrusion profiles learned above, Jubao magnesium olive sand focuses on producing a series of magnesium olive sand such as AZ31B, AZ91D, AZ80A, AZ61A, etc. Looking forward to your order.

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Magnesium olive sand

Precautions for processing magnesium olive sand

Surface treatment of magnesium olive sand

Precautions for processing magnesium olive sand

Surface treatment of magnesium olive sand

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How to Choose High-Quality Calcined Magnesite Olivine Sand In industries such as metallurgy and casting, calcined magnesite olivine sand is an important refractory material, and its quality directly affects production efficiency and product quality. So, how can one select high-quality calcined magnesite olivine sand? Purity is the primary consideration. High-purity calcined magnesite olivine sand has fewer impurities and better refractory performance. In high-temperature environments, impurities may trigger chemical reactions, reducing the material's stability and service life. One can check the product's inspection report to clarify the content ratio of major components such as magnesium oxide (MgO) and silicon dioxide (SiO₂). Generally, a magnesium oxide content of 40% - 50% and a silicon dioxide content of around 35% - 45%, with low levels of other impurities, are ideal. Particle size distribution should not be overlooked. Different application scenarios have different requirements for particle size. For example, in precision casting, products with uniform particle size and a higher proportion of fine particles are needed, as this can make the mold surface smoother and reduce casting defects. In some applications requiring high strength, such as large metallurgical furnace linings, an appropriate ratio of coarse particles can enhance the structural strength of the material. Therefore, it is essential to choose magnesite olivine sand with a particle size distribution that matches actual usage needs. Additionally, the degree of calcination is crucial. Fully calcined magnesite olivine sand has a stable crystal structure, offering better volume stability and slag erosion resistance. One can initially judge by observing the product's appearance and color; products with uniform color and dense texture are usually well-calcined. It is also advisable to consult suppliers to understand their calcination processes and temperature control. When selecting calcined magnesite olivine sand, a comprehensive assessment of purity, particle size distribution, and calcination degree, combined with one's actual production needs, is necessary to choose a suitable product that aids in efficient and stable production, enhancing product quality and economic benefits for the enterprise.

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