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.

Spider Veins – Cause and Treatments

Sometimes, you might have noticed red and blue blood vessels visible through your skin. Did you become a little worried or embarrassed about them? Have you wondered? They are known as spider veins. Let’s discuss the causes and treatments of spider vein.

What causes spider veins?
Spider veins are a mild manifestation of venous reflux disease. They are small, tangled groups of blood vessels that are found just under the skin surface. These dilated veins resemble tree spider webs or branches, and are normally spread out around the legs and feet.

What are the risk factors?
Spider vein risk factors are similar to those associated with varicose veins, and include older age, occupations requiring extended periods of standing, obesity, hormonal changes and heredity factors (weak vessel walls). People can also suffer from this condition due to prolonged exposure to ultraviolet rays or as a result of weak vessel walls.

Considering the risk factors, some people will be more prone to this problem than others. For example, if you work as a surgeon, a nurse or a teacher, the chances are higher that you may develop spider veins. Similarly, for people with a family history of weak vein valves, the probability of developing spider veins is also high. The same applies to hormonal changes, which generally occur during puberty, pregnancy and menopause.

The exact cause of spider veins is yet to be established. The existing risk factors can be divided into two general sub-divisions, i.e. congenital causes and acquired causes. In congenital causes, there port-wine stain, Maffucci’s syndrome and hereditary hemorrhagic telangiectasia (also known as osler-weber-rendu syndrome), among others. The acquired causes include acne rosacea, chemotherapy and lifestyle/occupation risk factors (as discussed above).

Spider vein symptoms
Spider veins are painful in some cases, generally accompanying cramping and aching. They are also closely linked to heaviness in the legs, and throbbing, burning or tingling sensations. In addition, symptoms such as itching, swelling and fatigue can also be experienced. In serious cases, this condition can develop ulcers, large sores and phlebitis. However, spider veins are detected by their appearance in the majority of incidences.

Tests and Diagnosis
Doctors usually employ non-invasive diagnostic tests to diagnose this condition. These tests are perfectly safe and painless, with no scalpels, needles or medication needing to be involved. The entire procedure is normally very brief, and probably won’t take you more than one hour.

There are three main things that doctors seek to answer with these tests. Firstly, they want to establish any evidence of deep vein blood clots. Secondly, they discover if the veins are functioning properly. And lastly, they test the Greater Saphenous Vein (GSV) to determine whether it is working well.

A competent vein specialist will always undertake this exercise before treating your condition. Some of the procedures that you can expect include:

*Color-flow Duplex Exam – This is used to evaluate the anatomy of the affected veins. It determines the direction of blood flow, openings and blockages. This procedure is also important in the process of vein mapping (done for skin deep problems).

*Bi-directional Doppler Exam – This is an ultrasound exam used to determine the speed of blood flow and whether it pauses during normal breathing. It also seeks to identify whether your veins are working properly.

*Photoplethysmography – Phew! Don’t let this complicated medical term intimidate you. Photoplethysmography is basically a diagnostic procedure that determines the efficiency of your calf muscle pump.

*Pressure Calf Exam – In performing this exam, you’ll lie facing upwards with legs lifted higher than your chest. This diagnostic procedure identifies vessel blockages.

After establishing the specific nature of your problem, the doctor can then outline the best treatment for you. There are several available options:

This treatment involves the doctor injecting a saline solution into the affected veins. This solution results in damage to the affected vessel walls, causing them to swell and seal shut. Eventually the scar tissue will fade. The entire sclerotherapy procedure takes approximately 30 minutes, and has only mild side-effects. And although the injection may be a bit painful, the stinging sensation is usually gone within a few minutes.

Laser and Intense Pulsed Light
This treatment option employs the use of a specialised device that focuses laser energy to the damaged tissue. The whole procedure will just take 20 minutes, and has minimal side-effects.

Natural Remedies
Natural remedies can mean the difference between undergoing medical procedures or not, and are valuable alongside medical treatment. Some recommended herbal remedies include:

*Horse Chestnut Seed – Studies show that this seed helps to improve blood circulation in the legs thus strengthening the veins and capillaries.

*Bilberry Extract – This herbal extract is known to stimulate new capillary formation thus strengthening the capillary walls.

*Butchers Broom – This herb strengthens veins.

*Gotu Kola – A very effective extract in addressing venous insufficiency, foot swelling and water retention. It therefore provides a good solution to spider veins found on the legs.

*Distilled Witch Hazel – This is directly applied on the affected areas using a cotton ball. Numerous clinical studies show that this extract can help strengthen blood vessels.

Caution: For health safety purposes, do not start using any herbal remedies without consulting a qualified doctor.

Spider veins prevention
Two of the most important things regarding the prevention of spider veins are eating a balanced diet and getting regular exercise. Eating a diet higher in fresh, raw fruits and vegetables than meat and convenience food is crucial, and if your job requires you to stand for a long time, you need to regularly shift your body weight from one leg to another as well as standing evenly balanced.

To sum things up, the procedure of a spider vein removal is chosen by several key factors. Your doctor will choose the optimum treatment options based on the results obtained from the diagnostic tests. We hope that this article will provide all the necessary guidance you need in addressing this problem.

For more information about spider veins Brisbane, contact the leg vein doctor Brisbane today.

Kit Homes Compared to Turnkey Homes

There is a major difference between kit homes and turnkey homes. Kit homes are built by an owner builder, one who wishes to build their own home. Whereas turnkey homes are built by professionals, so that the client does not need to be involved with the hundreds of steps and processes involved with building a new home. ”Turnkey” simply means that you, the client, can go to your brand new home, walk up to the beautiful front door and simply turn the key!

The process to become an owner builder is much more complicated than one might think. For instance, it’s a requirement of the Building Services Authority (BSA) that anyone who wishes to build or renovate their own home and spend over $11,000 must hold an owner builder permit, and these permits are only issued by the Building Services Authority once you’ve completed an owner builder course. The permits expire every 6 years.

Here are a few of the processes involved with building your own kit home; legal requirements, site preparation, footings and floors, wall construction, roof construction, windows and frames, doors, screens, wall finishes, ceilings, fixtures, plumbing, gas, electrical, draining, and then some landscaping to top it all off.
If you don’t have experience in all of these areas, building your own kit home could prove to be more challenging than you may think, especially tackling all the council codes, regulations and legal requirements!

We at Bush and Beach Home Builders are professionals at building sustainable homes. We know how stressful and overwhelming the process of building your own home can be, so let us do it for you! If you think assembling a piece of furniture is irritating, building a kit home is a hundred times more complicated. Instead, let us do the work for you so that all you have to do is turn the key and enjoy your unique, climate engineered Bush and Beach home.

If you want to see some house designs or learn more about our sustainable homes, please contact our team.

Logo Design Brisbane

When it comes to graphic design, and working with professional graphic designers Brisbane, one of the many techniques that are available to designers is the grid system. Not only does it give a basic premise 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 magazine 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 arrange graphic elements 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.

Want a Facelift for your Home? Start with Your Roof

Go outside and stand in front of your house. Now take a good look at your home. What are your thoughts? Do things look like they could use a little facelift?

Your roof makes up to 50% of your home front, and a roof restoration can often be the most economic way of updating the look of your homes exterior in addition to giving you the most dramatic results. A fresh coat of paint on your roof can really breathe new life into the look of the whole house, and bring a modern look to an older home.

Choosing your roofs colour is the most important element in achieving the look and style you are going for. There are a few ways to help you with this decision.

* Tear sheets. Flip through magazines and if something strikes you, tear it out and put it in a binder. Eventually you’ll realize a trend in your choices… Just make sure this ‘trend’ will suite the house your about to paint.

* Taking a look at your pre-existing brick, choose a colour in the brick and bring it up to your roof. This is a great way of giving your house flowing visual appeal, when colours blend easily to the eye it gives the feeling of a well coordinated style.

* Dark colour are very on trend, especially with a rendered finished wall. Greys, blacks and a dark terracotta always are in high demand. Retaining heat can be a repercussion of being on roofing’s colour trend in our warm Queensland climate. Insulation and heat productive paint are two little secretes that can minimize the heat that you’ll feel inside your home.

For Roof Restorations Brisbane, Roof Restoration Gold Coast or Brisbane Roofing Services, contact your roofing specialist at Brisco Roofing on 1300 166 209.