First of all, before choosing the drill bit, take a look at the difficulties in stainless steel flange processing. Find out the difficulty can be very accurate, very fast to find the use of the drill. What are the difficulties in stainless steel flange processing? Sticky knife: stainless steel processing chip toughness, cutting temperature is very high. When the strong chip flows through the front cutter surface, it will occur adhesive, fusion welding and other adhesive phenomenon, which affects the appearance brightness of the processed parts; Work hardening is severe.

In the consumption of large flanges, there are many functional elements that affect large flanges. Here we talk about several common elements. The first is the annealing temperature (annealing temperature is the temperature parameter of the primer and template respectively, when 50% of the primer and complementary sequence are the temperature of double-stranded DNA molecules.

It is an important factor affecting the specificity of PCR. In the case of aspiration, the annealing temperature is low enough to ensure that the primer is defired with the target sequence, and high enough to reduce nonspecific separations. Reasonable annealing temperatures range from 55℃ to 70℃. The annealing temperature is generally set at 5℃ lower than Tm of the primer.