Troubleshooting: Poor Relief and Cracking
故障排查：花纹不清与破裂
标签：纹浅, 破裂, 退火不足, 力度
花纹不清多因料硬（退火不足）或压力不够——重退火至软态并提高压印力。局部破裂常是单点重击或料厚不均，应改为由浅入深多道次渐压。辊压时纹路错位系对辊相位偏移，需重新对花（调零位标记）。
Poor relief usually means hard stock (under-annealed) or low pressure—re-anneal to soft and raise the press force. Local cracking comes from one hard hit or uneven gauge; switch to progressive shallow passes. On rollers, misaligned pattern means phase offset of the paired rolls—re-register the花纹 (zero the index mark). ---