Now I want to in big drying equipment in stainless steel heating tube or quartz heating tube to see what kind of heat transfer is fast
Iron heating tube heating speed slowly, but durable,
Heating speed refers to only a few meters dozens of seconds or a few minutes, if the heating time more than ten minutes, half an hour or more, or suggest use metal pipe, iron pipe than stainless steel heating tube of low cost, but if no rust bad back for a long time, if have been use the low cost or iron pipe
Heating up fast, of course, quartz heating tube, but the product is fragile, brittle, scrap rate is high
