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本文在普用测角台上按反射法扫测了电铸模具镍镀层的多晶衍射全谱,据此计算出镀层各晶面的择优系数Tc与第一类应力σ_T,并研究了在氨基磺酸盐电铸液中改变电流密度、温度及pH值对镀层的织构和应力σ_T的影响,研究结果表明,在该电铸液里电流密度为3A/dm~2,温度为50℃,pH值等于4时,形成强且稳定的{200}有利面织构,兼之有较小的σ_T,确定为电铸模具的合理电镀工艺。
In this paper, the universal measuring goniometer was used to scan the full spectrum of polycrystalline diffraction of the electroplated nickel coating by reflection method. Based on this, the preponderance coefficient Tc and the first type of stress σ_T of each crystal surface were calculated, The effects of current density, temperature and pH value on the texture and stress σ_T of the coating were investigated. The results show that in the electroforming solution, the current density is 3A / dm ~ 2, the temperature is 50 ℃, When the pH is equal to 4, a strong and stable {200} faceted texture is formed with a small σ_T, which is determined as a reasonable electroplating process for the electroforming mold.