The defence forces acting at sea are crucial to
Boilers, engines, generators and other many other heavy machines and electronics constitute the gamut of equipment on board a ship. Having said that security of a nation is at stake, it is essential that all the marine equipment is always operational and reliable. The marine forces recruit specific technicians and mechanical experts along with engineers for maintenance and upkeep of these machines. Apart from manual specified techniques for each individual machine, treatment against salt water, lubrication and periodic calibration are necessary practices. All these procedures are a prerequisite to decrease unexpected restoration and replacement and to prevent flip-down of machinery.
Getting correct readings and measurements is perhaps the most vital of all when at sea and periodic calibration is the answer to this need. Calibration is the process of adjusting the output of a measuring instrument to coincide with the common value within the specific accuracy range. It is important to preserve power and achieve optimum and efficient machine operation.
Temperature, pressure and velocity are the basic measures of machinery we would be concerned on a ship. One of the most commonly used equipment while at sea is thermocouples, which acts as a pyrometer for continuous measurement of temperature of Main engine, Auxiliary engine, gas turbines etc. In order to retain accuracy over a longer period of time, we need to use thermocouple calibrators. Electrical controls for automation are next most common category of equipment found on board a ship and electrical calibrators would needed for these. There is a lot more marine equipment used on-board such as air compressors and amplifiers etc. for a variety of functions and applications each requiring a specific calibrator for a definite type of calibration viz. pressure calibration, temperature calibration, flow calibration etc.
Complete kits for calibration using pressure and temperature calibrators towards preventive maintenance on-board ships would include the following:
Vacuum hand pump 0 to -1 bar (-15 psi)
Pneumatic hand-pump 0 to 40 bar (600psi)
Hydraulic calibration hand pump 0 to 700 bar
Digital pressure gauges
High accuracy pressure calibrator
Temperature calibrator
Electrical volts and current multimeter
Multi-function calibrator
Every ship should have a basic version of this kit on-board and all engineers and maintenance workers are trained in the use of these tools.
Hydraulic universal testing machines have very high accuracy requirements.
The hydraulic system is the power drive mechanism of the tensile testing machine.
The specific application of the electronic universal testing machine in the automobile manufacturing process: The electronic universal testing machine needs to be used for automobile parts.
Wave soldering refers to the molten solder (lead-tin alloy), sprayed by electric pump or electromagnetic pump into the solder wave required by the design, can also be formed by injecting nitrogen into the solder pool, so that it is pre-loaded The printed board of the component realizes the soft soldering of the mechanical and electrical connection between the solder end or the pin of the component and the pad of the printed board through the solder wave.
The frequency converter is a power control equipment that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply.
Electronic universal testing machine is a necessary equipment to control the quality of products.
The calibration operation of the electronic universal testing machine is still relatively unfamiliar to friends who use it for the first time.
Selective wave soldering defects and their prevention.
Testing machine, broadly speaking, is an instrument that verifies the quality or performance of a product or material according to the design requirements before it is put into use.
The tensile force is not an accurate value after being measured by the testing machine, and subsequent calculations are required to get the desired value.
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