Chapter 209 The largest order in April

Author: half west wind half sand

Chapter 209 The largest order in April

"But sister also reminds you that foreigners cannot believe all of them. These people come to us just to make money, and they will never show you friendship!"

Hu Xinyu was worthy of being an antique-level boss of a large company. He could see Ji Donglai's worries at a glance, which made Ji Donglai embarrassed.

Sitting in front of the other party, Ji Donglai felt that his heart could be seen through by the other party.

You can imagine the taste of this meal. Hu Xinyu only took two bites and left. Xu Gui also drove away, leaving only Ji Donglai to let go.

"What the hell, the water in any enterprise is so deep, it almost drowned me! Alas, it's hard to be an ordinary citizen, and it's also hard to be the manager of a company. These days... Damn, I'm still a man!"

"Buzz!"

"Huh? Master Qi, what's going on?"

Ji Donglai is drinking wantonly. He has spent a lot of energy dealing with the golden retriever Ji Donglai in the past few days. Now is the time to relax.

"Boss, we have come to do some big work. You can see if we can do some of the things. I don't dare to make a decision. After all, I don't understand polymers!"

Da Qizi scratched his head, including the master of machining. At this time, he was in trouble.

"Okay, I'll be there soon...the waiter will pack up and bring me two more dishes!"

Da Qizi didn't look for him easily, so Ji Donglai immediately asked the waiter to get him some dishes, and then took a taxi directly back to the small factory.

"I'll do it, it's really a big job."

The product comes from the power plant, a huge rubber-coated roller for the conveyor belt! The inner core of the steel rod in the middle is large and there is no problem, but the rubber coating is difficult to get, and it requires wear resistance.

Moreover, there are requirements for the encapsulation conditions. If the surface is textured, the construction period is one month.

"Master Qi, make the steel rods with the lowest cost, give me the combined price, and then get the glue! Ai Xing, come here, we will use the stove as an oven..."

Ji Dong came to Ding Aixing to start arranging tasks, and also started placing orders with the rubber manufacturers. The surface was a polyurethane wear-resistant layer, 80 degrees, and three thicknesses.

Ji Donglai asked his men to roll a cylinder on the surface of the roller, split it into two halves, polished the inside, and locked the two halves of the mold with bolts.

Da Qi Zi is also busy now. According to Da Qi Zi's request, similar to Ji Donglai, Da Qi Zi also made a two-half mold.

The interior of the cylinder was made of refractory materials. Ji Dong came to Cao Ren and went to Dacheng to directly find someone to make the cylinder. Because they were all standard models, Cao Ren delivered the refractory cylinder in one day.

Drive motor, double-sided rollers, blocked.

Everything was carefully calculated by Da Qizi, Ji Donglai and He Xiaolong led people to make it, and Ji Donglai arranged for people to produce electronic drawings.

The refractory cylinder joints are made of refractory glue mixed with clay. After all is completed, the outside is wrapped with asbestos rope for insulation, and finally the cylinder is wrapped, followed by a 20-thickness ring lining track.

"Get on the lathe, remember to ensure concentricity and polish the surface!"

After everything is done, the entire centrifuge barrel begins to be processed on the lathe. A center hole is first drilled into the head, and a smooth shaft is welded on the back. As the lathe is gradually aligned, iron filings begin to fly.

"Don't make the car too smooth, just 6:30, otherwise the gears won't hold!"

Looking at the group of men under his command, Ji Donglai nodded secretly, now that his men were finally all ready.

The chief lathe looked at the newest apprentices with an enamel jar and kept urging them. The apprentices immediately changed the turning speed. Ji Donglai kept nodding.

The welders over there welded a V-shaped frame with channel steel according to Ji Donglai's design drawings. The steel rollers were matched with two acceleration gears and four-stage motors, and the entire mechanism was completed.

The gantry crane started slowly, and the entire mechanism was swayed by the crane and installed on the reduction mechanism. As Ji Donglai started the motor, the speed of the entire reduction mechanism slowly became faster.

“That’s it, load the stove with 100 kilograms of material, add it according to this ratio!”

According to the requirements of the power plant, it is 45 material, but in fact it is not used at all. The foundry directly uses Q235 to adjust it, and the carbon content is slightly higher.

The shaft head is welded with 45mm, and a rib plate is added inside.

"call……"

All the scrap iron weighed by the electronic scale was thrown into the intermediate frequency furnace. The hot flames shot up half a meter high. The worker took off his gloves and wiped the sweat on his forehead. Da Qizi looked at his watch and returned to the break room to start drinking water.

The remaining workers looked at the stove.

An hour later, Da Qizi put down the water tank and walked out of the office. He put on his sunglasses and walked to the bottom of the steps. If he stretched out a big pole, the worker opened the lower discharge port and shook the dregs from the discharge port. A stream of bright red molten iron flowed out.

come out.

"Whoa!"

An iron flower flew out, and Ji Donglai gave a thumbs up and raised the flower to see the carbon content. This is a skill only experienced by old mechanics.

"Put in the ingredients and hit quickly!"

"Okay, master!"

After seeing that the color of the iron flowers was ready, Da Qizi said hello, and the young apprentice turned on the electronic button, and the furnace began to slowly discharge materials. As the valve closed, several workers carried the barrel to the drum.

As the molten iron enters the drum, a burst of white smoke comes out.

As the molten iron was gradually added, the speed of the entire drum decreased. Da Qizi started the backup reducer, and the rotation speed of the drum accelerated again.

"Swish, swish, swish!"

"Continue to add ingredients to the stove and the drum will come out!"

After adding the molten iron, Da Qizi waved his hand towards the intermediate frequency furnace. The young apprentices continued to use the electronic scale to weigh and add materials. The drum here slowly descended.

Then the crane lifted the drum, and the seal on one side was opened. As the drum tilted, a bright red cylinder material slid out of the drum.

"Let me check it out. It's so beautiful. It's the first time I know that rollers can be shaped like this. It's a great experience!"

"Brother Donglai, is this structure dense enough?"

"Yeah, it's hard to cast, isn't it?"

Looking at the bright red cylinder, several students' eyes were full of admiration, but also full of questions.

"Centrifugal casting, check the book! This craft is now practiced by few people. Don't look at what you are studying in school. In reality? Many practical things have been gradually lost! The so-called education does not conform to the development of the times.

This is it!”

"The probability of the centrifugal force throwing out the molten iron is the same. This casting method produces the most uniform product quality, so there is no need to worry about the density! Besides, if we want to be more dense, we can actually go to the forging platform and continue forging in this shape, changing the

Grain structure!”

"But this little roller won't be so strenuous. Its function is only to transmit, not to actually receive force!"

The iron block on the other side of the intermediate frequency furnace was still melting, and the steel rods on both sides of the shaft head were heated red at this time. The surface of the iron rod began to turn white. The worker cut off the power to the coil and sent the entire steel rod into the stamping machine.

"Empty, empty, empty..."

With the heavy head smashing down, the steps of the shaft head slowly formed.
Chapter completed!