We has varieties of sizes of color-coated steel sheet available for the clients' selection. Their size ranges are 0.236mm-1.0mm in thickness and 760mm-1220mm in width. Our color-coated steel sheet have excellent decorativeness, formativeness and corrosion resistance.

Our sandwich panel : Thickness 0.236 - 1.0mm , Width 760-1220mm .

Sandwich wall panel : 50x1150 & 75x1150

Sandwich roof top oanel : 50x1040 & 75x1040

The Kamov Ka-25 (NATO reporting name 'Hormone') was a naval helicopter, developed for the Soviet Navy in the USSR from 1958.

In the late 1950s there was an urgent demand for anti-submarine helicopters for deployment on new ships equipped with helicopter platforms entering service with the Soviet Navy. Kamov's compact design was chosen for production in 1958. To speed the development of the new anti-submarine helicopter Kamov designed and built a prototype to prove the cabin and dynamic components layout; designated Ka-20, this demonstrator was not equipped with mission equipment, corrosion protection or shipboard operational equipment. The Ka-20 was displayed at the 1961 Tushino Aviation Day display.

Definitive prototypes of the Ka-25 incorporated mission equipment and corrosion protection for the structure. The rotor system introduced aluminium alloy blades pressurised with nitrogen for crack detection, lubricated hinges, hydraulic powered controls, alcohol de-icing and automatic blade folding. Power was supplied by two free-turbine engines sat atop the cabin, with electrically de-iced inlets, plain lateral exhausts with no Infra-Red countermeasures, driving the main gearbox directly and a cooling fan for the gearbox and hydraulic oil coolers aft of the main gearbox. Construction was of stressed skin duralumin throughout with flush-riveting, as well as some bonding and honeycomb sandwich panels. The 1.5m × 1,25m × 3.94m cabin had a sliding door to port flight deck forward of the cabin and fuel tanks underfloor filled using a pressure refueling nozzle on the port side. A short boom at the rear of the cabin had a central fin and twin toed in fins at the ends of the tailplane mainly for use during auto-rotation. The undercarriage consisted of two noncastoring mainwheels with sprag brakes attached to the fuselage by parallel 'V' struts with a single angled shock absorber to dissipate landing loads, and two castoring nosewheels on straight shock absorbing legs attached directly to the fuselage either side of the cockpit which folded rearwards to reduce interference with the RADAR, all wheels were fitted with emergency rapid inflation flotation collars. Flying controls all act on the co-axial rotors with pitch, roll and collective similar to a conventional single rotor helicopter. Yaw was through differential collective which has a secondary effect of torque, an automatic mixer box ensured that total lift on the rotors remained constant during yaw maneuvers, to improve handling during deck landings. Optional extras included fold up seats for 12 passengers, rescue hoist, external auxiliary fuel tanks or containers for cameras, flares, smoke floats or beacons.

(Text Wikipedia)

www.jinggongmachine.com/roll-forming-machine-and-its-deve...

.

1. What is roll forming?

Roll forming machine is a plastic processing machine which uses multiple passes of sub forming rolls arranged in sequence to bend the coil, strip and other metal sheet strips continuously to make specific section.

2. The advantages of roll forming machine

The cz purlin roll forming machine is high-efficiency machinery that uses the new technology of material saving and energy saving. And by using this machine, not only can we produce high-quality steel products, but also can shorten the product development cycle, improve production efficiency, and improve the market competitiveness of the enterprises.

3. The application of roll forming machine

In the past half-century, the downspout roll forming machine has developed into the most effective metal forming equipment. In North America, 35% ~ 45% of the rolled strip steel is processed by roll forming machine, which is more than the steel used in the automobile industry.

In recent years, as an important structural part, roll-formed steel products have been widely used in many fields, such as construction, automobile manufacturing, shipbuilding, electronic industry and machinery manufacturing. Its products range from ordinary rails, doors and windows and other structural parts to some special profiles for special purposes. The section performance of roll-formed section steel per unit weight is better than that of hot-rolled section steel, and it has a high surface finish and dimensional accuracy. Therefore, roll-formed section steel instead of hot-rolled section steel can achieve the dual effect of saving steel and energy, so people attach great importance to the development of roll-formed section steel. It is the continuous desire of users for the varieties, specifications and quality of roll-formed steel products that promotes the rapid development of roof tile forming machine and cold-formed technology.

4. The development of the roll forming machine

Roll forming technology has a history of more than 100 years, which is roughly divided into three stages.

The first stage (1838-1909) is the stage of exploration and trial production. In this stage, the research work of roll forming theory and cold-formed steel is slow. With the rapid development of industrial transportation, the cold-formed steel produced by roll forming machine can not meet the requirements of users.

The second stage (1910-1959) is the establishment and gradual promotion of roll forming machine.

The third stage (from 1960-2021) is the rapid development stage of the roll forming machine.

The development trend of roll forming machine and cold-formed steel production can be summarized as follows:

(1) Increasing output

Since the 1960s, the output of cold-formed steel has increased rapidly, which is the general trend. According to the statistics of cold-formed steel in various countries over the years, the output of cold-formed steel and the output of steel is relatively stable in a certain proportion. With the improvement of the roll forming machine production process, the product specifications and varieties are increasing, the product quality is improving, and the application scope is expanding.

(2) Deepening research

The research on the theory, process and equipment of roll forming is in-depth, and a series of progress has been made in the practical application of roll forming machine and cold-formed steel.

(3) Emerging new technologies

After decades of improvement and perfection, the roll forming machine is becoming more and more mature. With the increasing recognition of the technical and economic effect of cold-formed steel in practical application, cold-formed steel is widely used in various fields of the national economy. The customers have more strict requirements on the quality of cold-formed steel, and the varieties and specifications are required to be diversified so that the cold roll forming machine is constantly improved to meet the requirements of users.

(4) Increasing product variety

With the development of cold-formed steel production and the expansion of its application scope, the varieties of cold-formed steel are increasing, the product structure is constantly updated, and the product standards are gradually improved.

ساندویچ پانل

جهت کسب اطلاعات بیشتر روی پیوند زیر کلیک کنید:

iranpro.net/pro/%d8%b3%d8%a7%d9%86%d8%af%d9%88%db%8c%da%8...

منتظر شده در : IranPro.net

مجموعه :

The Kamov Ka-25 (NATO reporting name 'Hormone') was a naval helicopter, developed for the Soviet Navy in the USSR from 1958.

In the late 1950s there was an urgent demand for anti-submarine helicopters for deployment on new ships equipped with helicopter platforms entering service with the Soviet Navy. Kamov's compact design was chosen for production in 1958. To speed the development of the new anti-submarine helicopter Kamov designed and built a prototype to prove the cabin and dynamic components layout; designated Ka-20, this demonstrator was not equipped with mission equipment, corrosion protection or shipboard operational equipment. The Ka-20 was displayed at the 1961 Tushino Aviation Day display.

Definitive prototypes of the Ka-25 incorporated mission equipment and corrosion protection for the structure. The rotor system introduced aluminium alloy blades pressurised with nitrogen for crack detection, lubricated hinges, hydraulic powered controls, alcohol de-icing and automatic blade folding. Power was supplied by two free-turbine engines sat atop the cabin, with electrically de-iced inlets, plain lateral exhausts with no Infra-Red countermeasures, driving the main gearbox directly and a cooling fan for the gearbox and hydraulic oil coolers aft of the main gearbox. Construction was of stressed skin duralumin throughout with flush-riveting, as well as some bonding and honeycomb sandwich panels. The 1.5m × 1,25m × 3.94m cabin had a sliding door to port flight deck forward of the cabin and fuel tanks underfloor filled using a pressure refueling nozzle on the port side. A short boom at the rear of the cabin had a central fin and twin toed in fins at the ends of the tailplane mainly for use during auto-rotation. The undercarriage consisted of two noncastoring mainwheels with sprag brakes attached to the fuselage by parallel 'V' struts with a single angled shock absorber to dissipate landing loads, and two castoring nosewheels on straight shock absorbing legs attached directly to the fuselage either side of the cockpit which folded rearwards to reduce interference with the RADAR, all wheels were fitted with emergency rapid inflation flotation collars. Flying controls all act on the co-axial rotors with pitch, roll and collective similar to a conventional single rotor helicopter. Yaw was through differential collective which has a secondary effect of torque, an automatic mixer box ensured that total lift on the rotors remained constant during yaw maneuvers, to improve handling during deck landings. Optional extras included fold up seats for 12 passengers, rescue hoist, external auxiliary fuel tanks or containers for cameras, flares, smoke floats or beacons.

(Text Wikipedia)

The Kamov Ka-25 (NATO reporting name 'Hormone') was a naval helicopter, developed for the Soviet Navy in the USSR from 1958.

In the late 1950s there was an urgent demand for anti-submarine helicopters for deployment on new ships equipped with helicopter platforms entering service with the Soviet Navy. Kamov's compact design was chosen for production in 1958. To speed the development of the new anti-submarine helicopter Kamov designed and built a prototype to prove the cabin and dynamic components layout; designated Ka-20, this demonstrator was not equipped with mission equipment, corrosion protection or shipboard operational equipment. The Ka-20 was displayed at the 1961 Tushino Aviation Day display.

Definitive prototypes of the Ka-25 incorporated mission equipment and corrosion protection for the structure. The rotor system introduced aluminium alloy blades pressurised with nitrogen for crack detection, lubricated hinges, hydraulic powered controls, alcohol de-icing and automatic blade folding. Power was supplied by two free-turbine engines sat atop the cabin, with electrically de-iced inlets, plain lateral exhausts with no Infra-Red countermeasures, driving the main gearbox directly and a cooling fan for the gearbox and hydraulic oil coolers aft of the main gearbox. Construction was of stressed skin duralumin throughout with flush-riveting, as well as some bonding and honeycomb sandwich panels. The 1.5m × 1,25m × 3.94m cabin had a sliding door to port flight deck forward of the cabin and fuel tanks underfloor filled using a pressure refueling nozzle on the port side. A short boom at the rear of the cabin had a central fin and twin toed in fins at the ends of the tailplane mainly for use during auto-rotation. The undercarriage consisted of two noncastoring mainwheels with sprag brakes attached to the fuselage by parallel 'V' struts with a single angled shock absorber to dissipate landing loads, and two castoring nosewheels on straight shock absorbing legs attached directly to the fuselage either side of the cockpit which folded rearwards to reduce interference with the RADAR, all wheels were fitted with emergency rapid inflation flotation collars. Flying controls all act on the co-axial rotors with pitch, roll and collective similar to a conventional single rotor helicopter. Yaw was through differential collective which has a secondary effect of torque, an automatic mixer box ensured that total lift on the rotors remained constant during yaw maneuvers, to improve handling during deck landings. Optional extras included fold up seats for 12 passengers, rescue hoist, external auxiliary fuel tanks or containers for cameras, flares, smoke floats or beacons.

(Text Wikipedia)

www.jinggongmachine.com/what-are-the-methods-of-choosing-...

Nowadays, there are many types of color steel tile forming machine equipment on the market. Even the color steel tile forming machine of the same brand can be divided into multiple models. How to choose to buy the right machine?

1. Judge the quality from the appearance of the roof tile forming machine

The appearance of the high-quality roof tile forming machine is beautiful. If the appearance of the machine is flawed, it means that the manufacturer's production process is not mature enough.

2. Judge the quality from the material of the roof tile forming machine

Good products must use good materials, and bad materials will cause noise or other bad performance when the tile forming machine is running.

3. Judge the quality from the price of the roof tile forming machine

The quotations of products produced by different roll forming machine manufacturers are very different, which is related to regional differences and product quality. Generally speaking, the price of products in big cities is a bit higher, and the price of good quality products is definitely higher than that of ordinary or even inferior products.

The above methods can help you distinguish the advantages and disadvantages of the color steel tile forming machine equipment. Remember to choose and compare when buying the tile forming machine, so that you can know what kind of products are more worth buying.

Zhejiang Jinggong Science & Technology Co., Ltd. has internationally advanced core technology and more than 50 years of experience in special equipment manufacturing. With the enterprise spirit of "Dare to innovate and strive for perfection" and the business philosophy of "Professionalism, Dedication, Technology, and Leading", it is in line with the well-known domestic high-end Institutional cooperation. If you have any needs, please feel free to consult us.

The Kamov Ka-25 (NATO reporting name 'Hormone') was a naval helicopter, developed for the Soviet Navy in the USSR from 1958.

In the late 1950s there was an urgent demand for anti-submarine helicopters for deployment on new ships equipped with helicopter platforms entering service with the Soviet Navy. Kamov's compact design was chosen for production in 1958. To speed the development of the new anti-submarine helicopter Kamov designed and built a prototype to prove the cabin and dynamic components layout; designated Ka-20, this demonstrator was not equipped with mission equipment, corrosion protection or shipboard operational equipment. The Ka-20 was displayed at the 1961 Tushino Aviation Day display.

Definitive prototypes of the Ka-25 incorporated mission equipment and corrosion protection for the structure. The rotor system introduced aluminium alloy blades pressurised with nitrogen for crack detection, lubricated hinges, hydraulic powered controls, alcohol de-icing and automatic blade folding. Power was supplied by two free-turbine engines sat atop the cabin, with electrically de-iced inlets, plain lateral exhausts with no Infra-Red countermeasures, driving the main gearbox directly and a cooling fan for the gearbox and hydraulic oil coolers aft of the main gearbox. Construction was of stressed skin duralumin throughout with flush-riveting, as well as some bonding and honeycomb sandwich panels. The 1.5m × 1,25m × 3.94m cabin had a sliding door to port flight deck forward of the cabin and fuel tanks underfloor filled using a pressure refueling nozzle on the port side. A short boom at the rear of the cabin had a central fin and twin toed in fins at the ends of the tailplane mainly for use during auto-rotation. The undercarriage consisted of two noncastoring mainwheels with sprag brakes attached to the fuselage by parallel 'V' struts with a single angled shock absorber to dissipate landing loads, and two castoring nosewheels on straight shock absorbing legs attached directly to the fuselage either side of the cockpit which folded rearwards to reduce interference with the RADAR, all wheels were fitted with emergency rapid inflation flotation collars. Flying controls all act on the co-axial rotors with pitch, roll and collective similar to a conventional single rotor helicopter. Yaw was through differential collective which has a secondary effect of torque, an automatic mixer box ensured that total lift on the rotors remained constant during yaw maneuvers, to improve handling during deck landings. Optional extras included fold up seats for 12 passengers, rescue hoist, external auxiliary fuel tanks or containers for cameras, flares, smoke floats or beacons.

(Text Wikipedia)