First of all, before selecting the drill bit, let's take a look at what are the difficulties in machining the stainless steel flange?Find the difficult points can be very accurate, very quickly to find the use of the drill.What are the difficulties of stainless steel flange processing?Brief stick knife: stainless steel processing chip strong and tough, cutting temperature is very high.When the strong and tough chip flow through the front surface of the knife, will attack bonding, fusion welding and other bonding phenomenon, affecting the processing parts of the surface brightness;Work hardening is severe.
In the consumption of large flanges, there are many functional factors affecting large flanges. The following are several common factors. The first is the annealing temperature (the annealing temperature is the temperature parameter of primer and template respectively, and the temperature when 50% of primer and complementary sequence are represented as 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 and the target sequence are both useful and high enough to reduce the non-specific separation.The reasonable annealing temperature ranges from 55℃ to 70℃.The annealing temperature is generally set 5℃ lower than the Tm of primers.
From:168 forgings net
Post time: Apr-23-2020