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Ultra-high-hardness aspheric glass lens mold material and preparation method thereof
The invention discloses an ultra-high-hardness aspheric glass lens mold material and a preparation method thereof. The mold material is prepared from the following components in percentage by weight:0.1 to 0.5% of Co, 0.5 to 5% of TaC, 0.45 to 0.75% of Cr3C2, 0.30 to 0.50% of VC and the balance WC. The preparation method comprises the steps of burdening, wet grinding, wax doping, shaping, sintering and heat treatment. Optimized technical conditions of all components in the raw materials and optimized process conditions for preparing the product are limited. The WC average grain size of the ultra-high-hardness aspheric glass lens mold material is 0.13-0.25 micron, the porosity is A02B00C00 and the HV10 ranges from 2650 to 2750, and the advantages of good high-temperature stability, high wear resistance and good thermal shock resistance are achieved, the forming quality of manufactured optical glass mold cores is high, the mold pressing frequency is high, and the production cost of precision mold pressing forming of the aspheric glass lens is reduced.
本发明公开了一种超高硬度非球面玻璃透镜模具材料及其制备方法，模具材料各组分的重量百分含量为0.1‑0.5％的Co、0.5‑5％的TaC、0.45％‑0.75％CrC、0.30％‑0.50％VC、余量为WC；制备方法包括配料、湿磨、掺蜡、制形、烧结及热处理。本发明限定了原料中各组分的优化技术条件以及制备产品的优化工艺条件。所述超高硬度非球面玻璃透镜模具材料的WC平均晶粒度为0.13～0.25μm，孔隙率为A02B00C00，HV为2650～2750，具有高温稳定性好、耐磨性高、耐热冲击性好的优点，其制造的光学玻璃模仁的成形质量高、模压次数多，降低了非球面玻璃透镜精密模压成形的生产成本。
Ultra-high-hardness aspheric glass lens mold material and preparation method thereof
The invention discloses an ultra-high-hardness aspheric glass lens mold material and a preparation method thereof. The mold material is prepared from the following components in percentage by weight:0.1 to 0.5% of Co, 0.5 to 5% of TaC, 0.45 to 0.75% of Cr3C2, 0.30 to 0.50% of VC and the balance WC. The preparation method comprises the steps of burdening, wet grinding, wax doping, shaping, sintering and heat treatment. Optimized technical conditions of all components in the raw materials and optimized process conditions for preparing the product are limited. The WC average grain size of the ultra-high-hardness aspheric glass lens mold material is 0.13-0.25 micron, the porosity is A02B00C00 and the HV10 ranges from 2650 to 2750, and the advantages of good high-temperature stability, high wear resistance and good thermal shock resistance are achieved, the forming quality of manufactured optical glass mold cores is high, the mold pressing frequency is high, and the production cost of precision mold pressing forming of the aspheric glass lens is reduced.
本发明公开了一种超高硬度非球面玻璃透镜模具材料及其制备方法，模具材料各组分的重量百分含量为0.1‑0.5％的Co、0.5‑5％的TaC、0.45％‑0.75％CrC、0.30％‑0.50％VC、余量为WC；制备方法包括配料、湿磨、掺蜡、制形、烧结及热处理。本发明限定了原料中各组分的优化技术条件以及制备产品的优化工艺条件。所述超高硬度非球面玻璃透镜模具材料的WC平均晶粒度为0.13～0.25μm，孔隙率为A02B00C00，HV为2650～2750，具有高温稳定性好、耐磨性高、耐热冲击性好的优点，其制造的光学玻璃模仁的成形质量高、模压次数多，降低了非球面玻璃透镜精密模压成形的生产成本。
Ultra-high-hardness aspheric glass lens mold material and preparation method thereof
一种超高硬度非球面玻璃透镜模具材料及其制备方法
XIE XINGCHENG (author) / CAO RUIJUN (author) / LIN ZHONGKUN (author) / ZHANG XIAOYONG (author) / YANG ZHIMIN (author) / YANG JIAN (author) / MAO CHANGHUI (author)
2020-04-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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