Energy saving in injection molding companies

Major multinational and technology centres as Ascamm are installing Ati System systems, managing to reduce their consumption in percentages between 20% to 60%: a proper installation of the equipment, proper development of the software, allows us to run systems as the start / auto stopthe engine-free disconnection or adaptable regulation of the system to any kind of mold without having to program the controller again.

Energy efficiency is related to the quantity of product which is obtained from a process per unit of energy and is defined as the set of activities designed to reduce (or optimize) the consumption of energy in unit terms, maintaining the level of services provided. According to the above process can be compared with another, efficiency, by comparing rates of consumption.

The index used to measure and compare the efficiency of a company of plastic injection is normally as follows: kwh/kg of transformed product.

Energy efficiency can be measured in a part of a machine, the complete machine, the process that has that machine or the set of integrated processes.

Energy efficiency depends on three basic variables.

1 The efficiency of the machine: a machine has a capacity of conversion associated with the transformation of the energy: can be as efficient as an electric transformer (80-90% or more) or as inefficient as the production of light an incandescent bulb (5-10%). Oldest minor equipment energy efficiency we will have.

2 Energy consumption: in this case the final energy efficiency depends on the mode of consumption, in the involved values and processes such as the cycle, the injection pressure, the amount of processing material, etc.

3 The habit or custom: in the case of industries, this term is known and is mistaken for the Protocol to use, manual, standard etc., and in general is not more than the way we interpret a team or process must be used. It is common in the industry taking, of consciously or unconsciously, inefficient processes. This is in response to it is not usual to perform analysis in the search for mechanisms to operate efficiently, from the energy point of view plot them. In this section you can find the hours that the engine of one machine can be switched on without anyone turn it off, is common in many machines put heating in maintenance mode, but the engine does not have a start / stop automatic.

The energy audit is a ' continuum ', designed to establish consumption levels and draw up strategies to carry out measures that permit, in turn, maintain and/or improve production levels decline, or at least maintaining, current energy consumption levels.

The energy audit is composed of several steps:

• Exploration: study of prior which allows to know in detail the characteristics of the entity.
• Planning: this work plan includes the tasks carried out in the audit, these are mostly interviews and measurements. Schedule of measurements as well as the protocols or schemes of measurement should be included, like the times or processes which are going to make these measurements.
• Implementation: Execution corresponds to the development of the activities envisaged in the planning of the audit. It is important, at this stage in the development of the work, check the levels of detail required in the taking of measurements as well as set the level of the measurements carried out within the implementation of the activities.