Sunday, August 9, 2015

Some opinions on the 5-axis waterjet machine development direction

1, Localization. With the increase in domestic demand, 5-axis waterjet mechanical localization of the degree will be increasing, the localization process will be faster and faster! With the current domestic technology absolutely can create quality and functionality comparable to or even exceed imported 5-axis waterjet machines, breaking foreign machinery occupy the high-end market situation, completely change the market structure of 5-axis waterjet machine. Domestic 5-axis waterjet machinery and imported 5-axis waterjet machinery will expand all-round competition in the market!

2, Popularization. People's pursuit of high quality living environment and clean production environment to make 5 axial waterjet machines are more and more widely used in various fields of production and life. Coupled with China's sustained and stable economic growth, the market demand for 5-axis waterjet machine is more and more, people from the strange to the understanding, from understanding to application, 5-axis waterjet machinery will usher in the popularity of large-scale development!

3, Simplification. To popularize 5-axis waterjet machine applications, must make everyone can use! This requires 5-axis waterjet machine to develop towards simplification direction! Reduce the use of barriers for 5-axis waterjet machine like "fool camera" everyone can use. 5-axis waterjet machine development itself requires manufacturers to create more convenient for people to use the product, in order to best meet the needs of different users. Create convenience for the user is to create their own wealth!

4, Intensification. 5-axis waterjet machinery industry from scratch ushered in the "Hundred Flowers" situation, extensive development resulting in the current 5-axis waterjet machinery quality and the employees quality the good and bad are intermingled! Competition is in a state of disorder, the brand management is even more confusion, lack of continuity of the effective promotion, users face a large number of brands of dazzling, difficult to choose and compare. Market and industry are urgently change! Intensification can eliminating the inferior and remaining superior, the pooling of resources, change the current status of 5-axis waterjet machinery manufacturing and management, is the only way of 5-axis waterjet machinery development!

Source: http://www.waterjetnozzles.com Waterjet Nozzles Manufacturer!

Friday, August 7, 2015

KOS teach you precisely adjust the waterjet pressure for cutting

With the popularity of waterjet cutting equipment, due to the waterjet cutting machine itself has many advantages, now the cutting processing industry people, are more and more using the waterjet as their cutting machine tools, but a lot of people are long-term waterjet fixed under the same pressure for the cutting operation, few people will according to different materials, different situations to reasonable adjust the water jet pressure. For each cutting sheet material is not the same, so the cutting pressure water jet cutting required is different, the following simple example and I will talk about why everyone in our water jet cutting, we need according to the cutting plate of different conditions (different materials, different thickness, etc.), the reasonable adjustment of water jet cutting pressure.

Waterjet through pressurized the water to generate high pressure water jet to cut the materials, but for different hardness, different thickness of materials, waterjet optimum cutting pressure is also not the same. Such as when cutting the ordinary stone, used to make mosaic are generally marble stone, relatively speaking not very high hardness, waterjet pressure preferably about 220MPa to 250Mpa. And if you want to cut the same thickness of the metal material, then waterjet pressure should reach 350MPa to 380MPa also added garnet sand can cut. So why not use the cutting metal pressure for cutting stone, waterjet is mechanical product, mechanical operation has its own speed, no matter how easy the material cutting, cutting speed is limited. The greater the waterjet pressure, the greater the cost of consumption, here including electricity costs, the loss of the machine wearing parts, and so on series of questions.

So if only cutting one material, then whether can not change the cutting pressure? Really, if only cutting one material, the beginning of the pressure is adjusted to the most suitable range, can be achieved without making adjustments. But waterjet, cars etc. all belong to machinery, driving people know that long-term driving in a speed range, is also damage to the car. So occasionally have to adjust the pressure appropriately to protect the machine, here only a little time to adjust, for the protection of the machine is much greater than the losses.

Source: http://www.waterjetnozzles.com

Thursday, August 6, 2015

Portable waterjet cutting is mainly used in what areas

The portable waterjet cutting system is more unique in its application by advanced design concept and perfect design ideas. The device uses the international high-performance hydraulic system, also equipped with the safety valve and bypass shut-off valve and other accessories, in order to facilitate the building, plant, forest, outdoor and all kinds of dangerous, special environment freedom of movement, work, without geographical restrictions, can quickly and accurately complete the task. The company's hazardous materials handling equipment can be widely used for police explosives disposal, waste ammunition disposal, air rescue, armed police to break barriers, oil industry, tunnel construction and rescue and other fields and has outstanding performance. Its safe and efficient, no heat generated during cutting characteristic, making it the leader in this field. Meanwhile, the waterjet cutting equipment fast, non-destructive, work fine, one-time forming characteristics, can also be used in construction, equipment processing, stone processing, metallurgy, medicine and other fields.

1, Applications in the Counter-Terrorism

In the field of counter-terrorism, counter-terrorist explosion problem is one of the highest technical requirements, but also the most pressing problems. Such as the disposal of hard medium airtight explosives, there is no good solution at home and abroad. Waterjet cutting system, with its unique characteristics of cold cutting, the disposal of this kind of explosive has an irreplaceable safety and reliability. Application can be flexible in high-speed EMU, ordinary trains, airplanes, ships, large official events, meetings and processions, riots odd jobs, respond to emergencies.

2, Application in the field of dangerous goods and waste materials

Our country needs to destroy a lot of waste ammunition, industrial waste and other dangerous medical waste and radioactive waste each year. Use the old conventional method of transport to the uninhabited mountainous processed, every year to spend a lot of manpower and material resources in this work, it is not safe during transport and a high accident rate, causing huge losses to the state property. The new technology of portable waterjet cutting technology as a high-risk items for disposal, not only fast and safe disposal of hazardous materials, but also on effective recycling materials and reduce environmental pollution.

3, Application in the field of break barriers and rescue

Portable waterjet cutting system with fast, efficient, non-caloric properties, has an important role in the rescue and barrier-breaking work. In some disaster site (such as the explosion site, combustible gas leak site, the oil leak site), can cut metal, security doors and other obstacles, but also to avoid the heat generated by cutting cause combustion and explosion, in the actual rescue work has important significance. At the same time, the device can also be used in all the fields of not suitable for friction and heat, high temperature, flame cutting environment unknown security situations, the barrier-breaking, break doors, break locks, and other fields.

Original author: http://www.waterjetnozzles.com.

Wednesday, August 5, 2015

Portable waterjet and traditional waterjet complementary advantages

First, for ease of illustration, the following portable waterjet called "pre-mixed waterjet", the common traditional waterjet called "post-mixed waterjet".

The biggest difference between the two is that the different abrasive mixed mode. To illustrate the "pre-mix" was first described "post-mix". "Post-mixed waterjet" is after the high pressure waterjet nozzle, the negative pressure generated by the water jet make abrasive suction into sand mixing chamber and then through abrasive nozzle spray. "Pre-mixed waterjet" to save the high-pressure waterjet nozzle this part, set a larger capacity pressure vessel directly after high-pressure water produced in the high-pressure pump (similar to the "post-mixed waterjet" of energy storage device, but much larger), and add abrasive in this container (this is the technology key of "pre-mixed waterjet"), and then through the high-pressure pipeline transportation to abrasive nozzle.

These two kinds of waterjet technologies are different, resulting in large differences of the two technical performance. "Pre-mixed waterjet" working pressure is not suitable for too high, generally 20 ~ 50MPa, but the flow rate should not be too small, typically 8 ~ 30 L / min. The "post-mixed waterjet" working pressure generally in 200 ~ 400MPa or more, and the flow is relatively small, generally in the 2 ~ 4 L / min.

"Pre-mixed waterjet" advantages: at lower pressures, but also to achieve "post-mixed waterjet" cutting function. And because "the pre-mixed" reasons, structure of high-pressure pump portion is much simpler than the "post-mixed waterjet". Equipment failure rates and maintenance costs are much lower.

"Pre-mixed waterjet" the limitations are obvious: due to the special nature of the mixed-sand, leading to its work is intermittent. And during its working period, it is not suitable for jets frequently "on" "off".

In summary, the portable waterjet as a "pre-mixed waterjet" compare with "post-mixed waterjet" , almost no competition in the use, but a complementary relationship. Portable waterjet not suitable for CNC cutting like "post-mixed waterjet", and cutting efficiency is far less than "post-mixed waterjet". But in the wild or the random cutting task, portable waterjet come in handy. As for cutting inflammable explosive and other dangerous goods, both of which can do the job. The key depending on how many assignments and cutting thickness.

Another key is the device price: portable water jet cutting is generally equipped with simple settings, the cost is about 40,000 yuan. CNC waterjet, the most small model is 1 m * 1 m, the cost is about 100,000 yuan.

Information resource from http://www.waterjetnozzles.com.

Tuesday, August 4, 2015

Waterjet pre-treatment of water

In different regions of our country and its water quality has a great difference, such as in most parts of the north, the water content of calcium and magnesium is relatively high, thus forming the so-called "hard water". As the ultra high pressure water jet pump equipment main medium of water, when the suspended solids or calcium and magnesium content exceeded, will resulting in a greater impact on system seal and high pressure parts service life. Therefore, it is necessary to pre-treatment of water entering the pump. Let's look at how the waterjet pre-treatment of water:

Waterjet cutting machine pre-treatment of water, including water filtration and water softening:

1, The main purpose of water filtration is to remove suspended solids in water, and it is usually realized by using multi-stage series filter device. Filter pump provides an initial pressure for the filter. Filters were equipped with 5μm, 1μm and 0.5μm of PP cotton filter. After triple filtered water will no longer be suspended solids, then after pressurized by a booster pump into the pressurizer. Filter stage usually requires the installation of a pressure differential table, through the filter when the filter clogging cause insufficient water pressure, the system will automatically stop and alarm to alert the operator to replace the filter in time to ensure system security.

2, The methods of softening water generally have boiling, ion exchange, reverse osmosis and other methods. The RH-1000 model softener as an example to introduce the basic principle of water softening and use.

(1) System function: The system uses 20μmPP cotton filter, activated carbon filter and 5μm ultrafilter series filter group, not only can remove the residual chlorine in water and suspended solids, and can effectively ensure the life of the resin. Softener resin used can effectively remove calcium and magnesium ions to achieve the effect of softened water. Softener with automatic regeneration.

(2) Water quality testing: to facilitate the understanding of the situation of water quality, can use water quality test reagent to test the water suspended solids, hardness and PH value. Let's take a look at it.

After softening water quality have a protective effect on the waterjet, prevent it from the "hard water" damage, prolong the service life.

Article source from http://www.waterjetnozzles.com.

Monday, August 3, 2015

Operation skills of using waterjet cutting machine

Operation skills:

1, Air gap when cutting, avoid cutting air gap is greater than 0.5mm. In the air gap in the nozzle divergent trend, it will cause the lower layer cutting surface roughness. Stack cutting, keep the sheet neatly stacked together.

2, Automatic loading and unloading, most machines do not use automatic loading and unloading techniques, such as the space shuttle.

3, Increase or decrease of water pressure by the controller.

4, Ordinary tap water, waterjet system uses ordinary tap water. 90% of pure waterjet and abrasive waterjet users require only water softening process to go through before the water filters through the pump into the turbocharger inlet. Reverse osmosis and deionization technology can greatly extend the life of the nozzle, but also cause costly damage to the turbocharger and high-pressure pipe.

5, Control system specially designed for the process, is usually more efficient and easier to use than the general multi process control.

Waterjet cutting mechanical features:

1, Can be configured dual cutting heads to increase productivity.

2, The actual cutting surface without burr, generally do not need the postprocessing.

3, Clean and safe process.

4, Low temperature processing, no dust and no harmful gases, are environmentally friendly.

5, Cutting fluctuation is absorbed by water, low noise.

6, By integrating the debris conveyor, continuous transport of waste abrasive and cutting excess material.

Information source from http://www.waterjetnozzles.com

Sunday, August 2, 2015

New technology in the waterjet cutting applications

In various processing industries, the pursuit of high-quality, high-efficiency direct forming process is currently the development trend of international, "waterjet" cutting machine is the response to this demand on the relevant technology innovation.

1, High-precision CNC machine tools

With the emergence of including precision ball screw, servo motor, resonance reduction unit and other technology, the machine tool can achieve higher position accuracy; and backlash compensation, repeat positioning accuracy improved, and the machine tool manufacturers will be more energy into to analyze the reasons for geometric error generated, so that by the use of the club measuring instrument and laser interferometer and other high-precision measuring instruments to detect geometric precision of machine tools and the establishment of a mapping table to give precision error correction, in order to manufacture high precision machine tools.

2, High power ultra high pressure system

Improve the energy of water, will enhance its cutting ability. The greater the energy of the water jet, the better the cutting performance, so the waterjet cutting machine pressure and maximum output flow has become the main parameters affecting the cutting ability. Currently, the international opinion on this are doing further research and testing, the test proved that when the pressure reaches 700MPa or more, also can use the pure water to cut thin steel plate and hard composite material, thus further improving the turbocharger pressure can greatly improve waterjet cutting machine cutting ability.

On the other hand, under the same pressure, increasing the flow rate of the jet (i.e. increasing the power of the jet) can also improve the cutting ability, thereby generating multi turbocharger parallel technology: under the premise of no major changes in the existing system, use multi turbocharger parallel technology, that's two or more high-voltage generator in parallel, can easily increase output flow of turbocharger, using large-diameter nozzle cutting, so water jet more efficient cutting energy, cutting effect better.

Information source: http://www.waterjetnozzles.com