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发火轮是打火机的重要零件之一，其质量直接影响打火机的使用性能。衡量发火轮质量的标准是装机后的发火率，即20次打火的着火次数。合格的发火轮发火率应大于99％。从试验可知，发火率与发火轮表面硬度有密切关系，合格的发火轮表面硬度要大于HRC63。发火轮通常由10”、20”低
Fire wheel is one of the important parts of lighters, the quality of its direct impact on the performance of lighters. The standard for measuring the quality of a fire wheel is the rate of fire after it is installed, ie, the number of fires that have struck 20 times. Qualified firing wheel firing rate should be greater than 99%. From the test we can see that the firing rate and the surface hardness of the steamer is closely related to the qualified surface hardness of the steamer is greater than HRC63. Steamer usually 10 “, 20” low