Modified coated sand for selective laser sintering and preparation method thereof
A laser sintering and selective technology, applied in the direction of manufacturing tools, casting molding equipment, metal processing equipment, etc., can solve the problems of long curing time, poor environmental protection, low strength of sintered products, etc., and achieve short curing time and high product strength. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0025] The modified coated sand for selective laser sintering and its preparation method are as follows:
[0026] (1) Add two-dimensional TiC to the RMgCl solution, the concentration of RMgCl solution is 10mol / L, and the temperature is 40°C; the weight ratio of two-dimensional TiC and RMgCl solution is 2:1, and then stir and mix evenly, the stirring time is 30min, and the rotation speed is 20r / min;
[0027] (2) Continue to add KH solution to RMgCl solution subsequently, the concentration of KH solution is 20mol / L, and solution temperature is 40 ℃; The mass ratio of KH solution and RMgCl solution is 2: 1, then stir and mix evenly, stirring time is 30min, The speed is 20r / min;
[0028] (3) Continue to add organosilane coupling agent and ethyl bromide subsequently, the weight ratio of organosilane coupling agent and RMgCl solution is 1: 2, the weight ratio of bromide ethane and RMgCl solution is 1: 2, then stir and mix evenly, The stirring time is 10min, and the rotating speed...
Embodiment 2
[0033] (1) Add two-dimensional TiC to the RMgCl solution, the concentration of RMgCl solution is 25mol / L, and the temperature is 55°C; the weight ratio of two-dimensional TiC and RMgCl solution is 2:1, and then stir and mix evenly, the stirring time is 30min, and the rotation speed is 20r / min;
[0034] (2) Continue to add KH solution to RMgCl solution subsequently, the concentration of KH solution is 30mol / L, and solution temperature is 50 ℃; The mass ratio of KH solution and RMgCl solution is 2: 1, then stir and mix evenly, stirring time is 30min, The speed is 20r / min;
[0035] (3) Continue to add organosilane coupling agent and ethyl bromide subsequently, the weight ratio of organosilane coupling agent and RMgCl solution is 1: 2, the weight ratio of bromide ethane and RMgCl solution is 1: 2, then stir and mix evenly, The stirring time is 10min, and the rotating speed is 20r / min;
[0036] (4) The obtained solution is filtered subsequently, and the obtained filter residue i...
Embodiment 3
[0040] (1) Add two-dimensional TiC to the RMgCl solution, the concentration of RMgCl solution is 20mol / L, and the temperature is 55°C; the weight ratio of two-dimensional TiC and RMgCl solution is 2:1, and then stir and mix evenly, the stirring time is 30min, and the rotation speed is 20r / min;
[0041](2) Continue to add KH solution to RMgCl solution subsequently, the concentration of KH solution is 30mol / L, and solution temperature is 50 ℃; The mass ratio of KH solution and RMgCl solution is 2: 1, then stir and mix evenly, stirring time is 30min, The speed is 20r / min;
[0042] (3) Continue to add organosilane coupling agent and ethyl bromide subsequently, the weight ratio of organosilane coupling agent and RMgCl solution is 1: 2, the weight ratio of bromide ethane and RMgCl solution is 1: 2, then stir and mix evenly, The stirring time is 10min, and the rotating speed is 20r / min;
[0043] (4) The resulting solution is filtered subsequently, and the resulting filter residue ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More