"We" shapers "perennial dealing with the star quality, using the star to make all kinds of utensils, sometimes in order to strengthen the performance of a certain aspect of the star quality, will add other materials to the star quality, thus inventing a lot of additive formula, this kind of added star quality is collectively called 'cooked star quality', just like the metal material in the 'alloy', in which the additives made of iron powder mixed with trace magic crystals can greatly improve the anti-friction performance of the star quality, but the cooked star mixed with iron powder will become heavier, the color is black, and the texture is rough."

"It doesn't matter, none of these changes are defects to the wheels."

Eugene was encouraged by Roland's attitude, and immediately instructed his assistant to fetch a bag of iron powder and a small piece of magic crystal from the warehouse.

The ratio of star quality to iron powder is five to one, and adding one-tenth of a pound of magic crystals to every 10,000 pounds of the mixture is enough, which is the largest cost to make cooked star quality. Fortunately, Roland has a lot of money, and he is the one who opened the magic crystal smelter, and he is not short of this little money, encouraging Eugene to experiment boldly.

Iron powder and star matter are two immiscible substances, but when the magic crystal powder is reconciled in the center, a magical scene happened in front of Roland's eyes - iron powder is like sugar powder that penetrates into water, which is quickly absorbed by that large mass of star matter, and evenly fused into a mature star matter, from translucent, light silver gray to dark gray, and the texture has changed from jelly-like soft to solid.

Eugene took out a dagger and stabbed it at the cooked star mixed with iron powder, and with a pop it bounced back, scraping its surface with the blade, and it took a lot of effort to scrape off a layer of debris, which shows the excellent anti-friction performance.

Roland was very pleased with the properties of the cooked star, a perfect substitute for rubber, but there were two difficulties in popularizing it in the Far East.

The first difficulty is that "Familiar Star Quality" can only be obtained through Star Quality, and the skill of extracting Star Quality must not be made by those with psychic abilities. In Vares, where psychic abilities are far more scarce than arcane and divine spellcasters, the production capacity of familiar astral matter may be very problematic.

The second problem is how to process the cooked star into tires. In Eugene's opinion, this matter is not a problem, and with a Tier 1 ability, it is easy to knead a large mass of cooked star into the shape of a solid tire, and the whole process takes less than ten seconds, which is easier than pinching plasticine. However, this kind of operation must rely on psychic abilities, and it cannot be industrialized at all, after all, ordinary workers do not have psychic abilities.

"If His Royal Highness the Prince is not too troublesome, you can heat the cooked star, and when the temperature rises to more than 400 degrees, it will melt into a liquid state, pour it into a tire mold prepared in advance, and after cooling, you can complete the shaping process." After all, Eugene is a senior engineer, and soon came up with a solution to industrial processing.

Roland recalled that most of the rubbers on earth could not withstand temperatures above 200 degrees, and that the high temperature resistance of cooked stars was better. However, 400 degrees is not a high temperature, and there is no technical difficulty in melting ripe stars.

"Eugene, thank you, I still have two thoughts on the matter of cooked star quality processing tires, and I would like to hear your opinion."

Roland's humble attitude made the "Shapemaker" very useful, and he quickly replied with a smile: "Your Highness's ideas will definitely inspire me, please speak." ”

"It's not a good idea to make solid tires, it's too wasteful of materials and bulky." Based on the experience of the development of tires on the earth, Roland directly skips those immature stages and tries to "leapfrog development": "My idea is whether the tire can be made into a sealed ring, filled with air inside, so that the pneumatic tire produced is not only lighter, saving raw materials, but also can compensate for the part of the elasticity lost by mixing iron powder, making the carriage more comfortable." ”

Eugene thought for a moment and looked at Roland hesitantly: "Your Highness, are you sure you want to do this?" In fact, the elasticity of the iron cooked star is enough to absorb the shock of the carriage, and the value of the pneumatic tire is mainly to save materials, but it also needs to add an additional inflating process, and the tires manufactured in this way will be deflated and scrapped as long as they are punctured with a small hole, which will cause serious waste. ”

Roland listened to Eugene's rebuttal and couldn't help but hesitate. He is a layman in the process of tyres, and he completely copies the experience of the earth, and it is inevitable that he will make the mistake of taking it for granted. Eugene's question, looking back, pneumatic tires do have the above shortcomings, and the historical experience of the earth also shows that with the progress of material technology, the application of "non-pneumatic tires" is becoming more and more common, and there is a great momentum to replace pneumatic tires.

From "solid tires" to "pneumatic tires", and then back to "non-pneumatic tires" that can be included in the category of "solid tires", technological progress is always spiraling upwards. To achieve this, technology and materials are indispensable, and Eugene is an expert in both fields.

After some thought, Roland decided to accept Eugene's criticism: "My suggestion just now may be ill-considered, let's do as you say, and try to produce solid tires first." ”

Eugene breathed a clear sigh of relief. As a technologist, what you fear most is the kind of leader who is a layman directs an insider and refuses to accept criticism.

"Next, let's talk about my second thought, if the surface of the tire is too smooth, I'm afraid it's not conducive to braking, wouldn't it be better if I added some patterns?" Roland asked Eugene.

Eugene was a little apprehensive when he rejected his first suggestion in person, but after careful observation, he confirmed that Roland was not displeased in the slightest, and humbly proposed new ideas to ask him for advice.

"The pattern on the surface of the tire is indeed conducive to increasing friction, and there is no technical problem, but what kind of pattern to add to achieve the best performance needs to be determined through repeated experiments."

Roland wanted to describe to him the "slash pattern" and "radial pattern" commonly used in tires on Earth, but after some consideration, he gave up. After all, he didn't know much about these technical details, and indiscriminate command would hinder Eugene's train of thought, so let him figure it out on his own, maybe he could find a better design.

"Brother Roland, what do you really think of making that...... Tires, is this business profitable? Otto asked, half-incredulously.

"Of course there is a profit!" Roland's confidence is not entirely based on the high profits of Michelin, Bridgestone, Continental and other international tyre giants on the planet, but also on the actual road conditions in various parts of Vares.