What are Aluminium Extrusions?

Extrusion is a process used to create objects of a fixed cross-sectional profile, of solid round, square or rectangular shapes, to L shapes and T shapes, tubes and many other different types. Metal is pushed through a die of the desired shape using either a mechanical or hydraulic press, resulting in the finished product. The cavity in which the raw material is pressed is lined with a wear resistant material which can withstand the pressure that is created when the material is pushed through, making extrusion possible without deforming or tearing the metal.

Aluminium extrusion is generally used in the manufacture of windows, doors and balustrades, but is also found in thousands of other items like vehicle parts, truck trays, boats and other marine products and refrigeration, etc to name a few.

Two advantages of this technique over other manufacturing processes are its ability to create very complex cross-sections, plus being able to work materials that are brittle, because the material only encounters compressive and shear stresses. It also forms finished parts with an excellent surface finish. Extrusions often minimise the need for secondary machining. They are not of the same dimensional accuracy or surface finish as machined parts, however, the process produces a wide variety of cross-sections that are hard to produce cost-effectively using other methods.

Extrusion may be continuous (producing indefinitely long material), or semi-continuous (producing many pieces). The minimum thickness of steel is about 3mm, whereas aluminum and magnesium is about 1mm. The extrusion process can be done with the material hot or cold.

Metals that are commonly extruded:

* Aluminium is the most commonly extruded material and can be hot or cold extruded
* Brass is used to extrude corrosion free rods, automobile parts, pipe fittings, engineering parts
* Copper pipe, wire, rods, bars, tubes, and welding electrodes
* Lead and tin pipes, wire, tubes, and cable sheathing
* Magnesium is used in aircraft parts and nuclear industry parts, and is about as extrudable as aluminum
* Zinc rods, bars, tubes, hardware components, fittings and handrails
* Steel rods and tracks -Usually plain carbon steel is extruded, but alloy steel and stainless steel can also be extruded
* Titanium is often used in aircraft components including seat tracks, engine rings, and other structural parts.

Clean Metals for Recycling

The cleaner that a metal is when it’s taken into a scrap metal yard to sell, the better price it will fetch per kilo, as foreign matter is costly to clean off, so this product will always be penalised accordingly in terms of the price. By this we mean no concrete, screws, glass, paper or any other foreign material attached.

All the metal we buy is processed by cleaning any non-metallic off it as required, cutting it into smaller pieces, and then it is put through a baling press to maximise the weights for export to South East Asia, where it will be melted down and manufactured into new products.

The Extrusion Process

The process begins by heating the material (for hot or warm extrusion). It is then loaded into the container for pressing. A dummy block is placed behind it where the ram then presses the material to push it out of the die. Afterward, the extrusion is stretched in order to straighten it. If higher quality properties are required then it may be heat treated or cold worked.

Cold extrusion is done at or near room temperature. Advantages of this over hot extrusion are the lack of oxidation, higher strength due to cold working, closer tolerances, good surface finish, and fast extrusion speeds if the material is subject to heat for a short period.

If you are looking for aluminium extrustion recyclers in Brisbane, make sure you visit Frog Metals.

Reflections on Life

Life – what is life! Life can be described in many ways and has many facets and interpretations. It presents us with an ongoing stream of experiences of situations, events and interactions of all kinds with other people and our environment.

It is creation in its magnificent splendour – the original bringing into existence of the universe by God.

For humans it is a journey encompassing all the seasons, colour and streams of life’s experiences.

The miracle of new life in any form of creation brings wonder and amazement as we become aware of the intrinsic formation of such an unexplainable divine plan.

For humans there are many rituals and traditions that help celebrate the different seasons and significant moments in life.

A welcoming of a new child might entail a ritual of a Christening or Blessing in the Christian tradition or perhaps a Naming Ceremony for those less religious. In other cultures and belief systems children are welcomed in a variety of ways but none-the-less mostly it is found to be a joyful celebration of the miracle of new birth.

Life can sometimes be brief – the miracle taken back from where it began just as life is beginning – the mystery of why these sad experiences happen not to be explained.

Life changes for humans as the body grows and life is experienced in new ways. Learning takes place as the brain develops and intelligence is gained and used for the betterment of human kind.

At times the human body suffers from physical limitations this being a challenge as strength of spirit and courage come to the fore.

During the seasons of life ritual is shown to be important such as times of celebration when a person reaches the age of eighteen – a time of maturity and starting out as an adult on life’s journey.

Permanency of relationships can be celebrated by the ritual of Marriage as people start a new chapter along the journey called life.

The miracle of new life can emerge again in this relationship of Marriage as a new life is created and welcomed to the world.

As the continuing seasons and cycles of life are observed, life can represent colour as of a rainbow in these seasons of new beginnings, celebrations, changes and endings.

Red, orange, yellow, green, blue, indigo and violet – colours of the rainbow – how symbolic of life’s journey as the rainbow is composed of the entire spectrum of colour from the shortest wavelength violet to the longest wavelength red.

A closing ritual now takes place as the body has accomplished its purpose and the ending of life as humans know it is honoured and the life celebrated as the spirit travels back to the Divine from whence it came.

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This article supplied by Sandra Hill, Brisbane Wedding Celebrant. For more information about Sandra Hill, weddings, renewal of vows and naming ceremonies in Brisbane, please contact Sandra today.

Logo Design Brisbane

When it comes to graphic design, and working with professional graphic designers Brisbane, one of the numerous techniques that are available to graphic designers is the grid system. Not only does it give a basic structure and starting point for the design work and layout of a page, it is also a simple system that designers turn to, when they are creating content for any number of mediums, from online site design, to print layouts.

Content organisation -
The grid system used by Brisbane graphic designers is a method of laying out content, in order to organise that content in a systematic way. By using margins, lines, columns, rows, and grids, the system allows designers to properly lay things out on a page, and lay them out in the most precise manner. Depending on the detail of the site, the content that is being laid out, and the manner in which it is to be seen by the end viewer, one grid, or a combination of grids can be used through all the pages on a site, in order to keep a uniform style, and to lay out the information and content in a certain manner to the end viewer of the site. Once the end result is displayed on screen (or in a magazine, newspaper, etc), the grid lines are no longer seen, but you can still see the consistent pattern if you look through all content, on all pages.

Types of grids and uses -
When graphic designers Brisbane choose the grid layout for site content, there is really no limit as to how many grids can or should be used, how they should be laid out, or how they should be created. It is simply used as a guide, to help lay out content, and give the pages some uniformity throughout. There is a common layout when it comes to grids, and some of the modifications or additions that can be made include:
- Equally sized 2, 3, or 4 column grids, which have a header at the top of the page, and full page grid of squares.
- Varied line, border, and width columns can be created using this basic pattern.
- Changes of page sises which allow for unique page designs, and content layout.
Using the grid system is a great way to lay out any page; it is a simple way to see all the content that will be used on the page, and how it will look once you are finished. Using the grids also allows designers to see whether everything fits together on the pages, how it looks, and whether changes should be made, prior to actually adding content to the sites.

Break out of grids -
Graphic designers Brisbane use the grid as a premise for design, and content layout; but, once the grid is established, and all content has been laid out, it is up to different designers how they are going to, if they are going to, and at which points in the page they are going to break out of the grid. Simple because designers break out of the traditional “grid”, does not mean that the entire system is ignored by designers; as a matter of fact, they use the grid system in many aspects of design and page layout.

Instead of throwing out the grid system, designers may choose to cross over from one grid to the next on the page layout, they choose to extend certain elements to different areas on the grid, possibly extend page breaks to create continual content, and so forth. By breaking out of the grid, designers are able to create a unique layout, they are able to create distinct content, and they are able to design a page and content that is best suited for the client that they are creating that content for.

Like any other guide or premise, Logo design Brisbane use the traditional grid system as a starting point for laying out content. It creates uniformity on a page, allows them to see what looks best where, and eventually it allows them to create, modify, and recreate the grid, in order to design a truly unique site, and one that is the best possible layout for the client they are working with.

How to stop the flood of election junk mail?

Anywhere on Earth, whether it is a Federal, Local Council, Presidential or State election, your mailbox will groan under the weight of materials aimed at winning your vote. It might be the digital age, but it seems that a letter in your letterbox is still considered the most efficient way of getting a message across.

While an informed electorate is crucial to the democratic process, there appears to be a glut of over-sending of junk mail for political purposes – and no clear way on how to stop this. What’s worse, the content of most of the political flyers is simply mudslinging about their opponents with no substance. Is anyone else reminded of children in the playground?

How can you help stop this unnecessary waste of paper? Imagine the strain on our environment and the large volume of greenhouse gases generated from all the trees cut down, printing and transport of the materials. Grab a cup of tea or your water bottle and let’s get down to it.

We know in Australia that material deemed to be political, educational, religious and charitable is exempt from “No Junk Mail” signed letterboxes according to standards conducted by the Australian Catalogue Association. So there is no way to stop it being deposited in your letterbox along with the other junk mail catalogues enticing you to buy all sorts of stuff you don’t really need. It is likely the same in other countries.

Step 1. Incorrectly addressed political mail
Much of your mail may be addressed to past occupants of the house. You need to “return this to sender” with the note “no longer at this address”.

Step 2. Contact each political party or politician that is mailing you
There is no central database so you will need to call the office of each individual sender and ask to be removed from their mailing list. Remember to be polite! You catch more bees with honey than vinegar.

Step 3. National Standard to stop political junk mail
Write a letter to the Electoral Commission asking them to implement a National Standard to limit the number of pieces each political party is allowed to put in each household’s letterbox.

Step 4. Polling day
Don’t forget to recycle any materials you are given on the day – often the Greens Party has a box at the booths for such materials on polling day!

Written by Tracey Bailey, Director of Biome Eco Stores in Brisbane, specialists in water bottles and eco friendly, reusable choices for your home, body and lifestyle.

Permanent Laser Hair Removal Brisbane

Laser Hair Removal is a becoming a popular treatment, as the current fashion for both men and women is to have the clean look consisting of little or no body hair. Excess or unwanted hair growth is usually a result of genetics, hormones or certain medications. Recent advances in the technology have meant that the hair removal treatments are now a lot more effective and there is less risk of side effects from occurring, making it safer for consumers.

When discussing Laser Hair Removal, it is important to note that the body has 3 cycles of hair growth – Anagen (active), Catogen (transitional) and Telogen (resting). The laser energy destroys hairs in the Anagen or active phase, targeting the cells at the base of the hair follicle which are responsible for hair growth. As Laser Hair Removal targets only the hairs in the active phase, only a percentage of hairs are treated with each session. A series of treatments is required to clear an area, though less hair will return with each treatment and the regrowth will become fine, soft and sparse.

Laser hair removal treatments target melanin which is the dark pigment contained within the hair. Red hair contains a different type of melanin and consequently the treatments can be less effective for redheads.
The area must be shaved prior to treatment to allow the laser energy to be directed under the skin, and not to heat up the surface by having dark hair above the skin level. Any plucking or waxing must be stopped for several weeks before starting treatment, as the hair needs to be in the follicle for it to work.

The effectiveness of the Laser Hair Removal treatments is mostly dependant on the quality of machine used, the parameters or correct setting and proper candidate selection. An ideal candidate for Laser Hair Removal has light coloured skin and dark coloured hair. This stark contrast of colour allows the laser light to easily target the hair and pose little or no risk of harm to the skin. This is also why it’s important to avoid sun exposure and tanning when undergoing a course of permanent hair removal treatments.

It is important for the full area to be treated by the laser with each hair removal appointment so hairs are not missed. Any missed patches will require additional treatments in the future and the area may look patchy or have uneven hair growth. Hairs that do not fall out or shed within about 14 days have usually not been treated effectively. This is due to poor spacing by the operator or incorrect technique, which can often be avoided by finding a reputable laser clinic that has licensed and experienced operators.

Looking to find out more about Laser Hair Removal Brisbane or Permanent Hair Removal Brisbane? Contact Image by Laser today to find out about our Laser Hair Removal Prices .