发明名称 |
Process for engraving ceramic surfaces using local laser vitrification |
摘要 |
A process is provided for producing contrasting, long lasting, glassy heat fused images on the surface of ceramic materials such as bricks using a laser to vitrify the substrate material. The process is accomplished in three stages: Stage 1) the laser produces a non-adherent, highly light absorptive layer by heating and removing material from the marking field to create depth into the brick's surface; Stage 2) melting of the main portion of the substrate material along the marking field using the non-adherent light absorptive layer from Stage 1 as an effective light absorber/heat transducer to cause vitrification along the marking field; Stage 3) residue from the melting in stage 2 is removed by laser ablation to produce the vitrified finished mark.
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申请公布号 |
US5554335(A) |
申请公布日期 |
1996.09.10 |
申请号 |
US19950392046 |
申请日期 |
1995.02.22 |
申请人 |
LASER LIGHT TECHNOLOGIES, INC. |
发明人 |
FIELDS, WILLIAM C.;FREDRICK, DAN;GRANNEMANN, STEVE;HANNAN, PHYLLIS;LUKASHEVSKY, IGOR |
分类号 |
B23K26/16;B23K26/40;B41M1/34;B41M5/24;B44C1/22;C04B41/00;C04B41/80;(IPC1-7):B23K26/16 |
主分类号 |
B23K26/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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