This article was first published from the China Used Car Self-Media Alliance
The author is the original of Wang Meng, the initiator of the alliance
Some of the graphics come from licensing and networking
Please contact: xiaopangfans
preface:
Polar Fox Car, ARCFOX, may be a pure electric car that I have driven "the most like a gas car", half a year ago test drive activities, others are more "power saving", and I have to find the feeling of "driving a car".
Recently, many media winter tests have also carried out various tests, relatively speaking, the "real endurance" of the Polar Fox car is indeed much better than other people's cars.
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(The above information is the latest test results of Autolab)
Polar fox this car, the media reputation is good, buy for yourself, basically are good choices, this factory visit there are several media who understand the car to buy this car at home, I have helped a lot of tests to borrow this car, everyone feedback is also the endurance of the real, the bottom of the car is good, drive up steadily, comparatively speaking, this car is a car, not a mobile phone + four wheels, or PPT inside the cool technology piled up and ignore the car itself.
But to be honest, having been in contact with so many electric vehicle companies and people, I feel that the extreme fox people engineer thinking is a bit paranoid, PPT and those new forces than the real "general", in our words, is a bit of a German kind of "square brain shell", not a marketing type of enterprise, but the real heart is "manufacturing thinking".
Someone said, fat brother, what new car are you used car people testing? Tell you that people who really understand cars are in the second-hand car circle, I don't believe you let these car media influencers come to compare the real business! The daily relay of the front line of real knives and real guns and hearsay is definitely the difference between Lian Po and Zhao Kuo.
Don't look at us in the used car industry for eighteen years of "old cannon", just as the so-called road remote horsepower has been seen for a long time, those of us who "look at historical performance" are the most able to know whether this car is a "short-lived Internet celebrity" or a "long-lasting and reliable partner"!
Talk less nonsense, on dry goods!
The Beiqi Blue Valley Magna factory where Jihu is located as a whole, the layman feels similar, but from a professional point of view, the rationality of the supporting process design involves issues such as assembly efficiency and cost in the later stage, and the refined process management is absolutely insider.This trip is full of expectations.
Some brands of cars the so-called "black light factory" is only on the surface of marketing, and really do the whole process of specialization and high efficiency, really is not a few PPT can solve, you really believe in PPT, that is "black under the lights", brother!
Our visit was to Beiqi Blue Valley Magna Automobile Co., Ltd. in Zhenjiang
Magna, who is it?
The world's famous vehicle engineering manufacturing and service manufacturers have more than 100 years of high-end automobile manufacturing experience and history.
The well-known Aston Martin, Mercedes-Benz G-Class, BMW 5 Series/Z4, Toyota GR Supercar, MINI Countryman/Paceman, Peugeot RCZ, Jaguar I-PACE/E-PACE and many other luxury models are mainly supplied by Magna and assembled and produced at Magna's Austrian vehicle factory.
In 2020, the company's revenue is 32.6 billion yuan, the world's 154,000 employees, the business involves vehicle engineering manufacturing, automotive exterior, interior, body chassis, seats, powertrains and other almost all fields, the annual manufacturing of more than 3.7 million high-end cars, more than 4,000 top engineers in various fields of automotive, currently involved in 31 well-known models, 10 car brands.
The company has a history of almost 120 years, and the first model dates back to 1906... 115 years ago.
BAIC, with a history of 63 years, 110,000 employees, ranked 124th among the world's top 500 companies, and is the first automobile joint venture in China.
Since there is a lot of confidential information involved in the factory, the tour can only reveal part of it, and come with me to see the mysteries inside!
120 years, 27 versions of iterative process technology, PPT can not learn!
One of Magna's advantages is the process management and optimization of Mafact's eight major plates, and the car-making assembly line has been evolving since the ford T, but the real application difference, global manufacturing is still very different, this time only opened the Color Code simple experience.
Simulated assembly of the experience process, the original 7 people, 2 minutes to manufacture 3 products, according to the traditional process can only manufacture 1 of which 6, optimization and adjustment according to Mafact improvement, 5 people, 2 minutes three products completed a total of 24, is indeed to save people and save money to improve efficiency, the key is also quality.
In fact, the "optimal management" of this manufacturing process is the bottleneck of various industries in China from Chinese manufacturing to China's intelligent manufacturing, some things require time and real experience accumulation, and the practical application of professional knowledge is far more difficult than the PPT that is well watched.
Electric vehicle batteries, the original manufacturing details are the culprits of the "explosion"!
This time we are fortunate to have less than a group of experts in the electric vehicle professional technology media "Hey Electric", in the battery Pack link we not only listen to the engineer's explanation, but also see a lot of different things, such as the "impurity" problem in the overall installation design of the battery pack, only more stringent manufacturing can ensure the safety after multiple charge and discharge, otherwise there will be some of the current frequent "explosion" problems of electric vehicles. (For specific details, please pay attention to the hey electric public number)
In the Jihu battery PACK workshop, the automatic rate of the whole line has reached 53%, including automatic on-line of modules, automatic detection, gluing, cleaning, and module installation, fixing, FDS riveting process and so on.
After the precision production of battery PACK, the power battery used by Jihu must be verified by more than 200 tests, and the coverage and strength are much higher than the national standard requirements.
For example, the national standard humidity and heat cycle test cycle is only 3 days, and Jihu Automobile should do a high temperature and high humidity cycle test equivalent for more than 10 years and more than 3 months, and an alternating test under full-use temperature conditions for more than 8 months to ensure that the power battery system adapts to the use scenarios in the environment across the country.
This also solves why we see that the endurance of this car is real, one of the "original causes" of good battery safety, after all, no matter how good the design is, the "gap superposition" in the manufacturing process is finally a world of difference.
7% leading with more environmentally friendly painting!
The fully enclosed, high-speed automated production line of the stamping workshop is mainly responsible for the production of large and medium-sized stamping parts of the body such as side walls, fenders, and door covers. According to the stamping process engineer Zhou Fang, the stamping workshop has a total of 40 self-made parts (including 15 aluminum parts), according to the MAFACT system standards, from the material to the final product, from appliances to equipment, all-round in-depth control, a pass rate of 97%, and most of the current main engine factories Of this indicator is about 90%.
In the body workshop, Beiqi Blue Valley Magna high-end intelligent manufacturing base has the first 30JPH steel and aluminum hybrid production line in China, which is a fully automated production line composed of 290 German KUKA robots and 206 sets of connected equipment.
Germany's KUKA Robot is known as the first of the four major families of robots in the world, which can achieve high-precision positioning at the millimeter level and the highest control accuracy in its peers.
In addition, in the painting workshop, 52 ABB high-performance robots form a fully automatic conveying system, and after multiple coating processes, the LASD water-based damping coating prepared by adding the appropriate amount of polymer resin to the appropriate amount of filler and auxiliary materials will be automatically sprayed to the body.
Conventional vehicle spray paint for electrophoresis layer, medium coating, color paint, varnish, four layers, and the new process application of this factory to achieve electrophoresis + double layer color paint + varnish, better corrosion resistance, better color, better environmental performance, see if the paint is good or not, that is the "professional" of the old master of the second-hand car!
A good chassis is the root of car building!
In order to achieve better body lightweighting, Jihu Automobile uses a hybrid body of upper steel and lower aluminum, and the manufacturing process of this hybrid body is more complex than that of all-aluminum body and requires more advanced technology.
For example, more mechanical connection methods such as SPR and FDS are used in the connection, and the problem of contact corrosion needs to be taken into account; the method of pickling passivation before welding or preset coating by material suppliers is used to solve the problem of dense oxide film with high hardness on the surface of aluminum alloy.
The mixed body of aluminum under the upper steel is composed of a cage frame structure surrounded by high-strength steel, and in the most critical A-pillar and B-pillar parts of the cage structure, the pole fox adopts hot-formed steel of more than 1500MPa.
According to engineers, this thermoformed steel is mostly used in tanks, submarines and space shuttles, and can withstand more than 10 tons of pressure per square centimeter, equivalent to the weight of two adult elephants.
In fact, the advantage of aluminum body is that the body is light in weight, which is conducive to acceleration, deceleration, energy saving, endurance and other benefits, but the bad place, especially our second-hand car people are most concerned about the "cost problem".
Audi A8L, Jaguar XJL and some other cars with all-aluminum bodies at that time, slightly collided, removable coverings such as doors, front and rear hatch covers are fine, if the two rear fenders, body skeleton, but "expensive to go."
Recently just to a certain media to do accident car repair program, Tesla Model3, left rear fender accident, because it is the front 2/3 steel, the back 1/3 aluminum, you need the entire cutting after 1/3 of the rear panel, 240,000 cars, material and labor costs will start at 40,000, the later use cost and accident depreciation that is quite high!
About the body skeleton structure used by Polar Fox Automobile belongs to the composite design and combination of steel, aluminum, magnesium and other materials, this body structure requires not only the professional depth of design, but also the welding process and assembly process must be very mature to be able to do, most of these designs are used in Mercedes-Benz G, Aston Martin such as more than 1 million + high-end cars only have the "golden skeleton", generally less than 500,000 cars, rarely use this.
Why? Because the manufacturing cost is expensive!
There are many connection points, many solder joints, good craftsmanship, good materials, high natural costs, these things are invisible, only people who really understand the car to play with the car know the importance of the "core".
Some people have to ask, how big can the difference be?
Inappropriate metaphor: the same serious accident, a good body skeleton mortality rate of a few thousandths, a bad appearance of a few thousandths of a thousandth, if you catch up...
Not to mention the problem of braking and steering, anyway, buy a car, the layman only looks at the appearance, the insider must look at the doorway, after all, life is worth money.
After reading this structure, the founder of Che Degang often said, I kind of bought the right polar fox, after all, we opened it ourselves, you say? Lao Wang, you second-hand car old cannon, looking for a point can be a real thief, a sentence to ask a little bit!
According to reports, the torsional stiffness of the new generation of Polar Fox Alpha S vehicle reached 63,000Nm/deg, reaching the industry ceiling level, and the all-terrain performance pure electric SUV Alpha T vehicle torsional stiffness reached 50,000Nm/deg, even higher than the Rolls-Royce Phantom. (Some of the parameters are from the network public reference: Bugatti Veyron 60000, BMW i8 - 49000, Rolls-Royce Phantom 40000, Touareg 36900, Passat 32400, Jaguar XF-24000, Fox 17941, polo-19000)
In terms of wading depth, the industry standard of the sedan is 300mm, and the polar fox can still reach the excellent level of wading test at 800mm, which not only ensures the safety of the cockpit occupants, but also effectively avoids the risk of accidents caused by battery water. (In general, the minimum ground clearance for a sedan is between 110 mm and 150 mm.) The minimum ground clearance for SUVs is generally between 200 and 250 mm, and the industry standard for the depth of wading in cars is 300 mm. The current standard reference data for the wading limit of mainstream off-road vehicles in the market are: Mercedes-Benz G4X4, 1000 mm; Range Rover, 900 mm; Ford Roadbreaker 800 mm; Jeep Wrangler, 762 mm; Mitsubishi Pajero 700 mm)
In addition, in the fully transparent shower room in the workshop, Jihu Automobile can easily pass the simulated mid-rain, heavy rain and even heavy rain and other vehicle all-round no dead angle flushing test, and the airtightness of the whole vehicle reaches 58SCFM, far exceeding the industry standard.
Used Car Old Mage's Point of View:
Looking at the overall visit to the Polar Fox Factory, it can be said that the sloppy viewing of flowers also focuses on observation, because it involves a lot of confidential content, so there are many can not be seen, there are many can not say, but also ask the officials to understand.
Automotive products, whether it is the new forces or the old forces, all kinds of new technologies and artificial intelligence, new energy new thinking, innovation is not a bad thing, but the premise is that the automotive products themselves are safe and reliable, just as many people now say that 1 is healthy, and the money and power behind are 0.
1 is poured, how many 0s are behind, all return to zero!
See a lot of current new cars, listing publicity is more cool "innovation" and there is no solid manufacturing and materials, cool do not say people's words PPT, and there are few down-to-earth ingenuity people, mileage moisture content does not know, their own safety problems to avoid the weight of light, automatic driving artificial intelligence a strong blessing, large screen on the whole, install B door installed, you are impulsive, on the line!
Why many post-80s buy cars calmly, and post-90s also begin to be rational, because "leeks" will always have a day of growing up and understanding, the road knows the horsepower, and the people's hearts are seen for a long time!
Cars are like that, and so are people!
Finally, I also hope that although the brand and products of Jihu are well done, the mileage is real, the chassis is solid, and the most reliable, but in this era of "traffic is king", it is also necessary to do a good job in PPT, do a good job in channel construction, adhere to ingenuity at the same time, let more people know and choose reliable cars. Otherwise, bad money drives out good money, and people who do things honestly will also suffer losses.
If this factory visit can allow more car enthusiasts and car users to visit and learn, I think there should be more gains and cognitive changes.
A car is good or not, it takes time and the retention rate of second-hand cars to test, from the perspective of the old master of second-hand cars, the car of the extreme fox, PPT I give 60 points, the level of car manufacturing I give 90 points, the future impact of the retention rate is estimated not the product itself, but the market channels, brand awareness, sales coverage, after-sales service network and other more supporting effects.
However, people who have kung fu to do PPT do not seem to have the energy to build a car well, you say?
Capital valuation does not represent the real value, PPT conference does not mean that there are really good cars, the money in our people's pockets, but also have to spend on reliable objects!