我厂以往使用汽油喷灯进行型芯表面烘烤。由于汽油燃烧能力特别强，使用危险性很大，所以在恶劣的铸造生产环境下其保管、搬运、罐装以及喷灯的使用极为不便。几年来曾多次出现过火灾和人身烧伤事故，虽经多方采取措施，其安全均不能得到保证。另外喷灯的操作由于重量大，... In the past, our factory used gasoline torch for core surface baking. Due to the particularly high combustion power of petrol, the use of gasoline is very dangerous, so it is extremely inconvenient to use it in custody, handling, canning and torch in the harsh casting production environment. Over the past few years, there have been many fire and bodily injury accidents. Although many parties take measures, their safety can not be guaranteed. In addition, the operation of the torch due to heavy weight, ...