3. Differentiate common causes and special causes that affect system changes
As a dynamic system, the cutting system has been undergoing various changes. From the perspective of system engineering, the causes of the changes can be divided into common causes and special causes. The common cause is the random variation factor inherent in the system, and the special cause is not inherent to the system, but it can cause significant changes in the system output.
As can be seen from the diagram of tool life variation over time (Fig. 3), the tool life originally fluctuated up and down around a certain average value. The cause of this small fluctuation is the common cause of the system, but if the tool life suddenly becomes short after a period of time or It becomes longer, and there must be some special reason.
Figure 3 Schematic diagram of tool life as a function of time
At this time, it is necessary to find out the special reasons and take corresponding measures, or to restore the tool life to the original level, or find a favorable factor, you should try to consolidate it and become inherent in the system. Factors that extend tool life and reduce tool costs.
4. Pay attention to the influence of cutting fluid on cutting system
1 The application of cutting fluid in machining is very common, but its various functions such as lubrication and cooling are not well known for the importance of cutting.
2 Recognize the tribological properties of the cutting tribology system and understand the importance of choosing the right lubrication method, lubrication method and lubrication medium.
3 In the process control of cutting process, the cutting fluid and its lubrication method including cutting fluid type, concentration, cleanliness, pH value, flow rate, pressure, etc. must be strictly controlled as process control parameters, so as to ensure the required cutting. Processability and processing quality and high production efficiency.
Previous Next
ASTM A269 Stainless Steel Pipes
Stainless Steel Sanitary ASTM A269 Stainless Steel Tubes is the main tubing line for a piping system. Generally, ASTM A269 Stainless Steel Tubes are made in stainless steel 304 and 316l, but we provide other grade too such as hastelloy C22, 316Ti, Titanium and nickel alloy etc. Kaysen offer both sanitary seamless tubes and Sanitary Welded Tubes to ASTM A270, ASTM A249, A269, ASTM A554, DIN11850, and size is up to 12″. Inner and outer surface is polished to meet the high purity requirement of hygienic industries. Kaysen is ability to supplying qualified ASTM A269 Stainless Steel Tubes comply to your your condition and FDA,GMP requirement.
ASTM A269 Stainless Steel Tubes - Sanitary Tubing
Material: SS304, SS316L, EN 1.4301, EN 1.4404, etc
OD diameter: 1/2" - 12"
Thickness: 0.5mm - 6mm
Standard: ASTM, JIS, DIN, JIS, SUS, GB
Length: 6m or customer made
Tolerance: OD. ±0.2mm; Thickness: ±0.02mm; Length: ±0.5mm
Surface Treatment: Matt Finish or Mirror Finish (320# 400# 600#) etc
Application: Boiler, heat exchanger, construction, hygienic, pharmacy, power, petrochemical
Strength:
Heat Treatment of solution annealing for the sanitary tubings and fittings are available
High precision on dimension and wall thickness
Both seamless and welded sanitary tubings are available
Length is up to 12 meters.
Min. order quantity of sanitary tubings is from 300Kgs.
Offer industrial pipe and tubes according to order.
PMI test to verify material grade.
Visual and surface 100% examination before shipment.
End protected for shipment.
ASTM A269 Stainless Steel Pipes, 1.4301 A269 Steel Pipes, SS316L Sanitary Pipes
Kaysen Steel Industry Co., Ltd. , https://www.chinasanitaryvalve.com