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METHOD OF PREPARING A SURFACE FOR DIFFUSION BONDING AND METHOD OF DIFFUSION BONDING
METHOD OF PREPARING A SURFACE FOR DIFFUSION BONDING AND METHOD OF DIFFUSION BONDING
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机译:制备用于扩散键合的表面的方法及扩散粘合方法
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摘要
A method of preparing a surface for diffusion bonding comprises contacting a binder material with a discontinuous surface comprising surface regions separated by gaps. The binder material is selectively deposited onto the surface regions and has a sufficient viscosity to form a self-supporting layer without flowing into the gaps. The self-supporting layer of binder material comprises a mass density in a range from about 1.55 g/m2 (0.001 g/in2) to about 77.50 g/m2 (0.050 g/in2). A braze powder is distributed over the self-supporting layer of binder material, and a predetermined amount of the braze powder is attached to the binder material. The discontinuous surface is then heated to remove the binder material and adhere the braze powder to the discontinuous surface. Thus, a prewet surface with a braze deposit thereon is formed.
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机译:一种制备用于扩散键合的表面的方法包括使粘合剂材料与不连续表面的粘合剂材料接触,包括由间隙分开的表面区域。粘合剂材料被选择性地沉积在表面区域上,并且具有足够的粘度以形成自支撑层而不流入间隙。粘合剂材料的自支撑层包括大约1.55g / m 2(0.001g / sop> 2℃)的质量密度为约77.50g / m < sup> 2 sup>(0.050g / sup> 2 sup>)。将钎焊粉末分布在粘合剂材料的自支撑层上,并且将预定量的钎焊粉末附着在粘合剂材料上。然后加热不连续的表面以除去粘合剂材料并将钎焊粉末粘附到不连续的表面上。因此,形成其上具有钎焊沉积物的预泡表面。
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