What is Marangoni effect in GTAW welding?
The Marangoni effect is the mass transfer along an interface between two fluids due to the surface tension gradient (which fluid from areas with low surface tension is transferred to areas with higher surface tension). In particular, a negative value … Continue reading What is Marangoni effect in GTAW welding?
What is a Francis Turbine?
The Francis turbine is a combo of a reaction turbine and impulse turbines. It uses the impulse for and reaction force of the water flowing through the blades to spin and produce electricity more efficiently. These types of turbines are … Continue reading What is a Francis Turbine?
How to determine preheating exemption in welding?
As discussed in our previous article Preheating temperature distance range preheat is really necessary in steel welding to control the cooling rate. More specifically, preheat is used to slow the cooling rate down in order to prevent excessive hardness in the … Continue reading How to determine preheating exemption in welding?
How To Void A Check: The Simple Process For Checking
A check which having the word void is known as voided check. The word void indicates that the check will not be used for the purpose of payment. What is a voided check? A voided check contains the check numbers, … Continue reading How To Void A Check: The Simple Process For Checking
What is a Septic System?
In a septic tank pump, an electric pump can be lowered into the sewer. The floating button turns the pump on and off as the chamber is filled with water. A small rotation of the septic pump spins the pump, … Continue reading What is a Septic System?
What is a Piston Pump?
A piston pump is a famous type of pump from the category of reciprocating pump. A piston pump has a high-pressure seal that moves according to the rotation of the piston. These reciprocating pumps use to pump different fluids such … Continue reading What is a Piston Pump?
What is Submersible pump
A submersible pump is an equipment that pushes the fluid to the surface instead of pulling it out. This pump has a sealed motor coupled with the pump’s body that pushes the liquid to the surface. Submersible pumps are mainly … Continue reading What is Submersible pump
Why WPS need to be qualified?
If you own or work at a job shop you may have noticed an increase in the number of customers that require the use of qualified welding procedures to build their products. Some fabricators are even getting this request from long time customers who never required them in the past. So why is this? The purpose of having a welding procedure specification (WPS) is to give the welder detailed instructions on how to make a weld. These instructions consist of parameters that need to be used such as amperage, voltage, travel speed, transverse and travel angles, gas flow rate, etc. … Continue reading Why WPS need to be qualified?
Vibration test example
Example of balancing a huge fan with much more vibration than first one. Result after repair: Vibration went from 3.1 mm/s to 0,2mm/s. Total 1,6kg was needed to get it perfect 🤩 #vibrationanalysis #vibrationtesting #balancing Continue reading Vibration test example
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