Understanding Plastics, Stone Materials, Ceramics, and Technical Drawing
Plastics
Plastics can be defined as a group of synthetic materials of organic origin, easily moldable with heat and pressure.
Thermoplastics
Thermoplastics are plastics that melt above a given temperature, which allows their conformation. Once molded, they can be recovered; that is, they can be easily recycled because heating them again (between 80 and 100°C) softens them, allowing the process to start again.
Thermosets
Thermoset plastics are characterized by the fact that once molded, they harden and
Read MoreElectrical Equipment in Pools and Bathrooms: Safety Standards
Electrical Equipment Usage
Electrical equipment should only be Class I or III, or specially designed for the intended sources. The luminaires must comply as described in UNE-EN 60,598-2-18. Socket outlets are not allowed in these volumes. Electric pumps must comply as described in UNE-EN 60,335-2-41.
Supplementary Bonding
In volumes 0 and 1, a local supplementary bonding must be installed. All accessible conductive parts of significant size, e.g., suppliers, metal components, and metal piping systems,
Read MoreMechanism and Engine Types: Transmission & Function
Mechanism and Engine Types
Transmission Mechanisms
The transmission ratio is the ratio of the velocities of two moving elements, represented by “r”.
A mechanism train is the union of several simple mechanisms. There are three main types:
- Reducing Transmission System: Used to attach a pulley system to a system of gears. It reduces the speed of a motor and can be achieved with multiple pulleys.
- Gear Train: Used to increase the speed of a mechanism. Employs multiple gears or pulleys.
- Pulley Train: Used to
Construction Plan Essentials: A Detailed Overview
Part Graphic: Plan of Construction
Number of planes in which one tries to define as precisely as possible all those elements and data we need to carry out the work. You have to supplement previously made memories. There are two types:
- A. Describe the work.
- B. Executives: that the work is constructed and what elements should lead this work.
Within the specification (A) find the location map, location, layout, marking, and surfaces.
- Location map: Map will appear in the area in which we work.
- Map location:
Aircraft Engine Components & Systems
Aircraft Engine Components and Systems
Bearings and Supports
- 1: Thrust bearing for low-pressure rotor (LPR)
- 2: Radial support for the front of the low-pressure compressor (LPC) drive shaft
- 3: Thrust bearing for high-pressure rotor (HPR)
- 4: Radial support for the high-pressure compressor (HPC)
- 5: Radial support for the low-pressure turbine (LPT)
- Oil-damped bearings: 1, 3, 5
- Carbon seals (dry-faced): 1, 2, 3, 5
- Roller bearings: 2,4,5
- Bearings: 3 (LP rotor), 2 (HP rotor)
Stages and Stations
- 117 STA #1 & #5
- 10th,
Multivalve, Variable Intake, and Valve Timing Systems
Multivalve Systems
Multivalve Systems involve using more than one valve for intake and exhaust (ESCP), operating either simultaneously or only when necessary. In a four-valve configuration, the valves are typically mounted in parallel, two by two, on the cylinder head. They are usually controlled by two camshafts: one for intake and one for exhaust.
Benefits of Multivalve Systems
- The intake cross-section is increased by at least 30%, improving airflow.
- Optimizes the size and shape of the combustion