Xiao Li.

"Yes!" Xiao Li took the inoculant formula and immediately turned around and ran towards the electric furnace steel factory behind him.

"Yu Hua, do you want the ironworks to suspend iron-making until ferrosilicon is produced?" Chen Kang asked.

"That's not necessary. Ferrosilicon is added as an inoculant before the molten iron is cast. It does not affect the blast furnace ironmaking process. Professor, I think we can take advantage of this opportunity to manufacture gray cast iron cross-rollers and 60 mm mandrels.

The core components of the seamless steel pipe rolling mill are ready." Yu Hua shook his head, and suddenly an idea came to him. He turned to Zhuang Qianding and suggested: "In this way, the arsenal's 60mm mortar project

Even if the biggest problem we face is solved.”

The biggest problem facing the Liushugou Arsenal 60mm mortar project is actually very simple in nature. As long as the seamless steel pipe rolling mill is installed, seamless steel pipes can be produced.

What are the core components of a seamless steel pipe rolling mill?

Cross-roller and mandrel.

The principle of rolling is roughly to align the heated forged solid billet with the conical mandrel, and under the action of the skew roller and the head, the two are in contact and forced to squeeze to perform perforation.

Mandrel diameter = inner diameter of steel pipe.

As for the material of the cross-rolling roller and mandrel, either cast iron or steel can be used.

Taking advantage of this opportunity, why not get two parts out first? Why not kill two birds with one stone?

As soon as these words came out, Chen Kang was stunned.

Hu Zhigang and Zhao Shu, the chiefs of the ordnance industry section, and Zhao Zhangcheng, who was most concerned about the 60mm mortar project, looked confused.

They couldn't believe what they heard.

Seamless steel pipe rolling mill!

Lin Wan was slightly startled, but she wasn't too surprised. After all, she was already familiar with Yu Hua's style.

Hearing Yu Hua's words, Zhuang Qianding smiled slightly, nodded and said: "Okay, I have this idea, using a two-roll cross-rolling mill design, casting four rolls and two 60mm mandrels, and building two prototypes first.
Chapter completed!