Construction Machine Blog

The use of steel in building construction is a relatively modern one, which really only hit its stride at the beginning of the 20th century. Metal use became commonplace over the last century thanks to cheaper production costs, better machinery and tools and sounder architectural design, and shows no sign of slowing down. Here’s a quick overview of how steel became such an essential component in the building industry.

As early as the 1700’s, designers and builders recognized that metal (specifically iron) could effectively be used to strengthen roofs and had the added benefit of being fireproof. I-beams were constructed of wrought iron, and the use of metal became extremely popular in the building of bridges during the 19th century. However, cost constraints as well as iron’s inability to handle constant pressure from heavy weights prevented it from being used extensively in building construction.

The rebuilding of Chicago following the Great Fire in the late 1800’s ushered in a new era in the use of metal in tall American structures. Skyscrapers became popular as builders began using steel in construction rather than iron. Steel was able to withstand weight demands extremely effectively, and because it was relatively cheap to produce, was also extremely practical.

The world never looked back, and steel has been the foundation of sound structure construction ever since. Today’s steel erecting companies provide an integral service, providing reinforcement to existing buildings and bridges as well as in the new construction of high rises, stadiums, and other large-scale projects. The buildings of today will give years of lasting service long through tomorrow thanks to the efforts of engineering visionaries over a century ago.

Expanding foam is an essential tool for anyone involved in a construction project. It can be used to fill cavities and joints quickly and effectively. Expanding foam is very easy to use and provides a professional finish to new builds and remodelling projects.

Polyurethane. It is injected into tanks or cans and kept pressurised. When the Polyurethane is exposed to air it expands into a foam substance that is very sticky. will swell to fill up gaps and will dry hard. It can be used as insulation and soundproofing and is the easiest way to fill cavities and holes. There are several different types of (including slow and fast rise) and these are designed for different projects.

These can come with their own applicator or you can use a special foam gun. These are very easy to use and will ensure a smooth, even application. use expanding foam you need to thoroughly clean the surfaces you are going to be working with. Oils and dirt can reduce the adhesiveness of and cause it to ‘pull away’ slightly when it has dried. This will reduce the effectiveness of the insulation and sound proofing. It is also a good idea if you are working in the home to lay down some protective sheeting over floors and furnishings.

Once you have prepared the area are working on then you simply apply the foam into the cavity, gap or hole you want filled. This will expand at a ratio of around 8 to 1. Fill the hole slowly so that you can judge the expansion rate more effectively. This will prevent you from wasting foam or not applying enough.

Health and Safety

It will stick to your skin and hair and is difficult to remove so you should wear gloves and protective clothing (including a hat) when using this product. Also contains a number of chemicals which can become air born when you are applying the product. These can cause inhalation irritation so when you are using it is a good idea to wear a ventilated mask. To help disperse air born chemicals you should also open windows and doors in the space you are working in if possible.

For people in the construction business, not much thought is given to the history and evolution of heavy construction machinery. People go to work every day to build houses, office complexes bridges, waterlines, move lumber, reach street lights, and the list goes on and for all these jobs to be completed successfully special equipment is required. You could say that when people try to find a forklift for sale, Freightliner Fl50, or perhaps a Case 1840, the only thought is finding the right machinery at a good price, not how machinery has come.

However, with so many changes over the past several decades, it is important for people who work with heavy construction machinery to understand a little bit of history, as well as the types of changes see and expected changes for the future. For this reason, we wanted to provide a better understanding regarding changes specific to these machines.

It is important for people to remember that in addition to materials and workmanship improving, technology has also made a significant impact on contracting equipment used in today’s work environment. Construction company owners and managers have a huge responsibility to keep current on the various types of equipment produced and then determine if it would benefit their specific business. Whether an avalanche pickup or F250 truck, technology is making work easier, more convenient, faster, and safer.

One of the key factors when choosing any type of heavy construction machinery is quality. Obviously, when higher quality materials are used, the equipment can withstand more demand and last much longer. Then when workmanship and design of contracting equipment is high quality, operations would be seamless. Another important aspect of heavy construction machinery is that because so many are designed with state-of-the art technology, operation is done by a highly trained professional.

The operation of any type of machinery has a primary function of keeping the equipment in excellent condition so the company experiences no down time. The more the machine operates at peak performance without being out of commission the easier it is for the company to stay below budget. In addition, because of new technology and automation for construction machine’s functionality, fewer people are needed for various jobs, allowing the company to utilize the extra people in a different capacity.

Today, many types of heavy construction machinery are designed with computerized systems. Although an operator is still needed for operations, many of the older processes are now being done by the system with the operator overseeing the equipment’s functionality. Some designers and researchers of heavy construction machinery are now looking at a methodology called “work cell”, which is a newer type of technology still in the works.

The concept of the work cell method specific to heavy construction machinery is that a single operator would work from a primary work station but instead of operating a single piece of heavy duty equipment, two or three different pieces of equipment would be operated. However, to make this concept a reality, all of the machines being operated would need some type of sensory or automated control so certain functions would be handled automatically. Without doubt, heavy construction machinery has come a long way and it appears the future will be even more incredible than it is today.

From the export data of 2009, the export value of Chinese engineering machinery was 7.121 billion U.S. dollars, down 39% year-on-year. The import value of construction machinery in 2009 amounted to 4.773 billion U.S. dollars, down 16% year-on-year.

The monthly export value of Chinese construction machinery in 2009 was approximately equivalent to the basic level in 2007. The export figure of 2008 was very high, so the year-on-year growth of 2009 was negative. Taking into account of the pick up of external demand in 2010 and low base of the overall data in 2009, the year-on-year growth of export value is expected restored to the level of 50% in 2010. Because of the strong demand from Chinese domestic market, the decline of import value was not very obvious in 2009. As of 2009 November and December, the year-on-year data had turned positive, showing quite obvious recovery. It is expected that the import value of construction machinery will increase about 30%.

How bout the current situation and analysis of our country’s construction machine leasing industry? What is the market demand and the existing issues about construction machine leasing industry? Now China construction industry association does a survey about the current situation and future development of China construction machine leasing industry, the survey is done by a questionnaire and the interview with the important companies, 63% of the companies which join in this survey are construction machine leasing companies, the rest of them are construction enterprises.

Now we talk about the current condition about construction machine leasing industry. Our country’s construction machine leasing industry starts later than foreign countries’, and the scale is not big enough. The origin of this industry dates back to the 1990s, and with the ever increasing development of the enterprises, state-owned, private, joint venture, personal construction machine enterprises develop rapidly, for example, in Beijing, the numbers of the companies which is engaged in leasing are 400.

Here are the questions which the enterprises care about.  The key to determine whether the transaction is success or not is the leasing price, and the proportion of this factor is about 25.8%,which is followed by the band reputation of the leasing company, which is about 20.4%. The questions which the enterprises care about are rent arrears which occupy 50.7% of the whole, the standardization of the market which is 46.4%, the third one is the development of the band.

According the survey, here are some advices for the future development of this industry. Firstly, we should change the business concepts, and create new kinds of leasing mode. Secondly, build new leasing enterprises which are more professional and have their own bands and scale. As is known to all, the quantity of enterprises which are more professional and have their own bands and scale in machinery represents the developing level of the whole machinery. Thirdly, apply scientific managing method, and lower the credit risk. Fourthly, create differentiated services, and improve the competitiveness of the enterprises. Focusing on selling and ignoring service is the general problem existing in today’s construction machine leasing machinery, the conception of doing well in service is not only focusing on improving the satisfaction of the existing service, but also thinking about how to apply customers with underlying demand. So improving the service quality and making diverse service projects to satisfy customers will increase the quantity of the leasing transaction.

In a word, let government authorities, industry association and enterprises cooperate with each other fluently, and make a just, fair, orderly environment for the leasing market.

As is known to all, the heavy machinery can be simply divided into several groups such as construction machinery, engineering machinery, crane, metallurgy machinery and so on, and according to the application of the product and the actual use of the product, we can divided it into other catalogs.

Today, we’d like to introduce something about construction machinery, first, the definition of construction machinery. Those machines which are used in the process of construction is called construction machine, and these machine can make the building more stable, and make the time of completing the building shorter. Construction machinery can be subdivided into construction device, road equipment, garden machine, crane, excavator, earth-moving machine, and so on.

Currently, the globalization of the economy is the general trend of the world economy, since China joined the WTO, the speed of China’s integration into the world economy accelerates rapidly, so from now on, one trend of our country’s construction marketing is toward internationalization, standardization and the diversity of the marketing. Because of these changes in construction marketing, it affects several aspects of the construction marketing in China. Firstly, the general trend of investment in our country’s marketing is increasing, and it does bring the opportunity toward the development of the construction machinery. Secondly, the integration of the domestic and overseas market, and it did bring great opportunity and challenge to enlarge the international contract market. After we enter the WTO, all the members which join the WTO have to share information with each other, and have no excuse to turn down members illegally. Because the reduction of the tax, we can low our cost, in that way ,we can also enlarge the importation of the material, all these issues is benefit for the development of the economy.

Thirdly, the environment of the construction market is becoming better, at the present, a lot of issues in construction market exist, but the general trend about domestic market is towards the sound, the standardization and the perfection of the one.

Fourthly, more and more foreign investment flow into construction companies in China, and it brings the fierce competition among construction market, through the competition, we can reduce the gap between domestic and overseas marketing.

In a word, from now on and in the following years, it is a good opportunity to develop the construction, although we may meet a lot of challenges, we can tackle them and have our own market occupation in the construction market.

Nowadays all kinds of machine tool have been used in manufacturing industry, such as turning, milling, grinder, planer, and so on, but among them, milling machine is the most useful machine tool, because we can produce complex surface through using milling machine. Today, we will study and know a new kind of milling machine which is famous for its high efficiency and cleanness, it is called whirlwind milling machine. Whirlwind machine is a kind of machine which we add the high speed thread devices to normal turning machine, through using CBN tool which is clamped in the high speed milling cutter, we can mill the thread on the workpiece, because of its high speed which is more than 400m/min, high working efficiency, and cool strategy which use compressed air to get the chips out of the thread of the workpiece, it is becoming more and more important and popular. Whirlwind machine can also realize dry cutting ,heavy load cutting and ultra high speed cutting, the surface roughness can reach 0.8 um, because the turning speed of spindle is slow, so the motion accuracy of machine tool is accurate, and we can get high dynamic stability. Here are the motion of the whirlwind machine, the main motion is the high speed turning of the mill cutter, the supplementary motor is the slow turning of the machine tool with clamped workpiece, the feed motor is the slow movement of the mill cutter at x direction, and we should adjust the angle of the mill cutter according to the thread lead angle. The application of the whirlwind machine is spreading all kinds of machinery, for example, the sprite which we drink when we feel thirsty is involved in using this technology, we can manufacture the cap using whirlwind machine, and we can also manufacture all kinds of bolts and ball screws. On the whole, the whirlwind technology is widely used in daily life, and we can keep improving the feature of the whirlwind machine, in that way, we can keep doing great in machinery.

On 16 ~17 of January 2009, a “Chinese Construction Crane Technology Innovation Strategy Alliance Seminar” was held in Liaoning, Dalian Province. Many representatives from XCMG, Jingcheng Heavy Industry, Liugong, Sunward, Foton Lovol, DHI·DCW Group Co., Ltd. and many other large construction machinery enterprise, as well as many experts and professionals from Dalian University of Technology, Tongji University, Tianjin Engineering Machinery Research Institute and other research institutes attended this seminar. The seminar focused on the establishment of innovation and strategic alliance in the construction lifting machinery industry.

At present, during a critical period of Chinese economy, China is vigorously expanding domestic demand, accelerating infrastructure construction and upgrading industrial transformation. In the next decade years, the investment in large infrastructure projects will continuously increase, and the roads, railways, urban construction, new energy, water conservancy projects will grow constantly. The peak of large-scale urbanization will come. In face of the great market prospects, Chinese enterprises should work together to build a community to conduct production and technology research, through which forming core competitiveness in the industry. The crane enterprises, parts factories and research institutes should strengthen cooperation with each other and promote Chinese crane industry to develop from the phase of imitation and low-end products to creation and high-end products.