"Long-off" of the Olympic

August 8, 2008, Beijing, the 29th Summer Olympic Games opening ceremony.
For many people, this is the day the Games start. However, vehicles of the Group of the North China Changchun Railway Vehicles Co., Ltd. (hereinafter referred to as "long-off") of the staff, they four years ago was singing the Olympic Games will open the curtain of the song.

December 24, 2004, Beijing, Great Hall of the People, Beijing Metro Line 5 electric passenger car procurement contract signing ceremony held here, the long-off for Beijing to develop 192 new subway passenger cars. This is the Beijing Olympic Games for the procurement of the first subway car, but also China's first batch design, production of lightweight stainless steel subway passenger does not paint the project.

The Olympic long-off from the beginning of the day. "Subway cars for the Olympic Games! This is an extraordinary honor and a great responsibility." Chang, deputy chief engineer of the passenger Gu Botan statement that he was feeling both excited and nervous: long-off will face unprecedented challenges.

Olympic Challenge

This is a long-off for the Beijing Olympic Games to provide subway cars to start:

November 9, 2005, the Beijing No. 10 subway line (with Olympic Line) signed a contract for the purchase of vehicles. Long-off for Beijing to develop 34 new 204 stainless steel subway passenger cars.

March 12, 2006, the city of Beijing Capital International Airport rail transit line project linear motor vehicle procurement contract signing. Long-off for the capital city of Beijing to develop 40 linear motor city passenger rail. This is a linear motor rail cars in the city's first large-scale domestic applications.

May 22, 2007, Beijing Metro Line 2 contract vehicle. Long-off for Beijing to develop a new type of stainless steel to avoid painting subway cars.

November 22, 2007, was long off the "Beijing No. 13 subway line expansion of the purchase of electric bus project procurement contract," Beijing will provide a total of 112 new vehicles.

914! At this point, the long-off win Olympic Beijing subway cars for more than 90% of orders, which means that long-city passenger rail car to bear the Olympic Games in Beijing more than 90% of rail traffic.

Development of the new, for the first time, these words clearly convey such a message: the successful experience can not mimic long-off needs to be done not only to create, but also to create. Olympic vehicles and the requirement should not allow any errors.

This is a kind of challenge? Long-off to a successful response to it?

We already know the answer. Since receiving the orders of the moment, the long-off challenge their own limits of the factory, "Olympic Games" began, the goal is to deliver on schedule.

The factory, "Olympic Games"

In November 2005, the long-off for the Beijing Metro Line 5 in the first column of the development of lightweight stainless steel do not paint on a subway bus opened a second assembly plant assembly line.

The deputy Lin Chunli clearly remember, when this column using domestic stainless steel wire drawing board for the first time the new car parked in the assembly line, what a stunning scene: The body issued under the sun brilliant luster, all Wai workers are up, touch it and see it on their own works of new products admiration click one's tongue.

The workers quickly discovered: the body was touched on all areas have left a clear imprint, and it is difficult to eliminate out. While this does not affect the use, but workers say that: This is the chief representative of the customer, on behalf of the Chinese Olympic image of the car, a little bit of the flaws can not be forgiven!

After twists and turns, Lin Chunli and her colleagues at last the body wash and body outside affixed to a layer of kraft paper.

As a result of new technology, car body parts all have connections with bolts, which requires the vehicle with more than 2,000 holes to play. "Hardness of stainless steel is very high, difficult process." Assembly plant in the second assembly plant built a squad leader Hu Xin, told a group of reporters: "We can only adopt a higher hardness of the alloy bit operations, light training workers, used on a number of Tons of stainless steel scraps. "

April 30, 2006, the long-off for the Beijing Metro Line 5 of the first train line to develop, test results showed that: the performance in full compliance with the requirements of the contract. Olympic done a first car.

Olympic Games need to provide long-off of the car is not just a good, but 914 cars, of which just before the opening of the Olympic Games, it is necessary to more than 700 vehicles.

Large-scale production will start immediately. Delivery peak period, monthly production to reach 10-12 in order to the normal performance of the contract. However, in accordance with the existing method, the city is responsible for the production of the second rail car assembly plant only a month to 23. How do?

Process Re-engineering. In the face of tremendous pressure, the chief guest in an unprecedented way to stimulate creativity was out. Long break-off of the original process, a new project, surrounding the project, including the establishment of technology, production, testing, after-sales service, the whole process of the project team and reasonable process to streamline and improve efficiency, only to debug by detecting links Before the production moved to an improved greatly shortened the production cycle.



Airport battle lines

The greatest pressure comes from the airport straight line of electric urban rail passenger car, known as the "country" is the long-off with foreign partners completed. Partners to provide long-off of only a few prototype car pictures, not only to long-off in accordance with this picture a few designs, manufactures in full compliance with the requirements of the body, but also the prototype vehicle into a group of motorcycle 4 car group.

The most serious challenges is weight control. Partners to provide the requested power module of the vehicle body weight to be 25 tons, vehicle performance can be achieved contract, and general urban rail vehicle weight of more than 35 tons.

"The first time the design is completed, we feel it is difficult to complete the weight requirements. Communicate with the partners decided to re-design." JIA Bo said the design team produced a detailed distribution of quality table, the 25 tons of weight assigned to each A sheet of aluminum alloy, each seat, or even every bolt, the matching requirements of manufacturers in ensuring the performance, never overweight. To receive parts, each of the components on all scales, the weight is not only to be exceeded. "We hold the weight of deduction to such a degree: the calculation of indicators, the shelves at the end of aluminum alloy, the two-hole play, not playing a hole." JIA Bo Xiao Yan: a hole that is the weight of one kilogram ah.

Create a car-like, on a scale, 24.6 tons, the goal of controlling more than 400 kilograms of weight loss!

Airport line of sensors is another major challenge for the laying of tracks.

17600. This figure is from Dongzhimen to Beijing International Airport Terminal mouth full of laying track the number of sensors. At first glance, these rectangular-shaped sensor in addition to length of the track seems to be some differences, are basically the same. But this is not the case, JIA Bo told reporters that the sensor tracks more than 3000 kinds of specifications.

In other words, the average size of each sensor tracks less than 6. No matter the design, manufacture or pavement, the requirements are very high, and each track to install sensors in the order can not be changed. During the two-year roll-out process, the customer has been a long while measuring, edge design, the production side, the side pavement. To have a daily average of just several dozen tons of sensors to create a long rail passenger service to Beijing from the construction site.

July 7, 2008, before the Olympic Games, Beijing to provide long-off for the city of more than 700 vehicles of all rail cars to be delivered on schedule in the hands of customers. Long-off to win the contract, even beyond their own.



Beyond long-off

Over the course of their own, is also growing.

"Beijing Subway Line 5 and Line 10 Tu-free stainless steel body, which is equivalent to second-generation Japanese stainless steel body, but on the 2nd line of the body is the long-off developed with independent intellectual property rights of the new body. "JIA Bo told reporters that the adoption of the Beijing Olympic Games to provide vehicles, long off the technological level of production capacity have been greatly enhanced. Now, the long-off has become the most powerful vehicles and stainless steel linear motor car manufacturers.

We are more likely to see is long-off to improve the market position:

December 3, 2006, access to long-off Australia PPP626 stainless steel double-decker passenger cars vehicle sub-project contracts, signed 626 vehicles, of the total contract amount of 3.1082 billion dollars, marking China's rolling stock for the first time to enter the developed countries.

March 26, 2008, signed a long-off in the Middle East exports of 455 subway cars and 160 double-decker bus orders, the total amount of 360,000,000 euros, or about 3,800,000,000 yuan. This is so far the number of China's railway equipment and the largest amount of export contracts for the export of China's landmark railway equipment.

... ...

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