Cesium-tungsten bronze heat absorbent, preparation thereof and application of cesium-tungsten bronze heat absorbent in transparent ABS infrared welding
A technology of cesium tungsten bronze and endothermic agent, applied in welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of unattainable aesthetic effect, dark color of welding place, poor aging resistance, etc. Good laser fusion welding effect, smooth weld seam, simple composition effect
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Embodiment 1
[0032] Step 1. Preparation of cesium tungsten bronze slurry: 5.7kg of toluene solvent and 0.3kg of dispersant were mixed and stirred for 30 minutes, and then 4.0kg of cesium tungsten bronze powder (Cs 0.2 WO 3 ), continue stirring and mixing for 30min, and the mixed slurry is ground to obtain a cesium tungsten bronze slurry with an average particle size of 60.03nm, and the particle size distribution is as follows: figure 2 .
[0033] Step 2. Preparation of cesium tungsten bronze endothermic agent: mix and stir 8.0kg transparent ABS resin (D90:100um), 1.5kg cesium tungsten bronze slurry, 0.2kg leveling agent, and 0.2kg acrylonitrile resin for 60 minutes to obtain cesium tungsten Bronze infrared heat absorber.
[0034] The cesium tungsten bronze endothermic agent prepared in Example 1 was applied to the place to be welded by 3D printing, and then welded. The welding test results are shown in Table 1.
Embodiment 2
[0036] Step 1. Preparation of cesium tungsten bronze slurry: 4.5kg ethyl acetate and 0.5kg dispersant were mixed and stirred for 30min, then 5.0kg cesium tungsten bronze powder (Cs 0.3 WO 3 ), continue to stir and mix for 30min, and the mixed slurry is ground to obtain a cesium tungsten bronze slurry with an average particle diameter of 66.34nm, and the particle size distribution is as follows: image 3 .
[0037] Step 2. Preparation of cesium tungsten bronze endothermic agent: 8.6kg transparent ABS resin (D90:200um), 1.0kg cesium tungsten bronze slurry, 0.3kg leveling agent, 0.1kg acrylonitrile resin were stirred and mixed for 60 minutes to obtain cesium tungsten Bronze infrared heat absorber.
[0038] The cesium tungsten bronze endothermic agent prepared in Example 2 was applied to the place to be welded by silk screen printing, and then welded. The welding test results are shown in Table 1.
Embodiment 3
[0040] Step 1. Preparation of cesium tungsten bronze slurry: Mix and stir 5.1kg methyl ethyl ketone and 0.4kg dispersant for 30min, then add 4.5kg cesium tungsten bronze powder (Cs 0.32 WO 3 ), continue stirring and mixing for 30min, and the mixed slurry is ground to obtain a cesium tungsten bronze slurry whose average particle size is 73.99nm, and the particle size distribution is as follows: Figure 4 .
[0041] Step 2. Preparation of cesium tungsten bronze endothermic agent: 8.3kg of transparent ABS resin (D90:150um), 1.3kg of cesium tungsten bronze slurry, 0.25kg of leveling agent, and 0.17kg of acrylonitrile resin were stirred and mixed for 60 minutes to obtain cesium tungsten Bronze infrared heat absorber.
[0042] The cesium tungsten bronze endothermic agent prepared in Example 3 was coated on the place to be welded by 3D printing, and then welded. The welding test results are shown in Table 1.
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