I've done whatever I want

Chapter 42 Help This Handsome Boy
It is not easy to become a master black belt. The teenager knows that studying Six Sigma is difficult. This difficulty is even comparable to that of a generation of heroes Zhang Wuji practicing Jiuyang magic.

But once you practice successfully, the rewards will be huge.

Mingyueguang packaging and testing factory has not officially implemented Six Sigma, only a few colleagues in the quality department are doing research in private.

For the practice of Six Sigma, it is completely dependent on self-study, which undoubtedly adds a lot of difficulty.

In 2002, the quality engineers of Mingyueguang Sealing and Testing Factory launched a strong attack on the Six Sigma Junior Green Belt. Only He Silian was lucky enough to succeed. Xiang Qiang, who has worked for nearly ten years, is still outside the Green Belt door. Wander.

Xiang Gong knows little about Six Sigma except for his research on the seven techniques.

With the green belt in hand, next year, He Silin will sound the clarion call to attack the middle-level black belt!

That morning, when He Silian passed the office of the FOL engineering department, she suddenly thought of Xin Tong. When she met this sunny boy in the cafeteria in the morning, his smile was very heartwarming.

She walked in purposely and paid attention to the hero list of bonding process technicians.

Ever since I saw Xin Tong's three-pointer on the court last time, Changhua felt that this boy was not only handsome in appearance, but also had excellent athletic talent. After talking with him, he felt that he was enthusiastic and smart, and gradually became a diehard fan of the boy.

Unfortunately, Xin Tong has slipped from the top of the list.

If he cannot return to first place in a short period of time, he will lose the opportunity to challenge the manufacturing engineers. The fate of No. 2 and last place is actually the same, and this year's efforts will be in vain.

We must help this handsome boy.

In the bonding workshop, He Silian strolled to the F area, and saw the boy replacing the cleavage knife from afar.

The way he works hard is the same as the way he shoots basketball, he is very handsome!
Changhua walked over and patted the boy on the shoulder lightly: "Hey! What are you up to?"

The young man turned around and saw He Silian, his face full of surprise.

"He Gong!" The boy felt very excited when the factory flower took the initiative to strike up a conversation.

He had just replaced his worn riving knife and looked relaxed.

"Xin Gong, have you read any books about Six Sigma?" Heslian asked softly.

"Six Sigma? Oh! I've been reading the book "The SIX SIGMA WAY" recently!" The young man was at a loss as to why Holstein suddenly cared about Six Sigma.

"The SIX SIGMA WAY? English original?" Chang Hua was stunned.

She had also heard of this book, but she was put off by it because of the language barrier.

Is it unlikely that a technician studies English works?In her impression, the English proficiency of Mingyueguang technicians is still at the test-taking level, and there is still a long way to go before the application.

This boy can't be bragging, can he?

Changhua has seen many men who like to brag. Some people show off real estate in front of her, and some show off Santana cars in front of her.

However, Xin Tong doesn't seem to be such a man.

Her intuition told her that this boy was different.

"Yes, it is an original English work. Only by reading the original work can one understand the original intention of the author!" The young man was shining brightly.

"Do you know SPC?" Changhua asked, she wanted to test the teenagers, if she had read books on Six Sigma, she should be familiar with SPC.

"Of course, SPC is the abbreviation of Statistical Process Control in English, and I'm working on Xbar-R Chart!" The boy nodded and replied.

While studying the SPC exercises, the boy was shocked.

In his simple concept, there is a measurement standard for right and wrong. For products, it is the limit defined by specifications. If it exceeds this limit, it is a defective product.

But SPC breaks the shackles of this concept. In addition to the specification limit, SPC also defines the control limit, and the upper and lower limits of the control limit are three sigma.

"Do you know UCL and LCL?" Changhua asked.

When the boy mentioned Xbar-R Chart, He Silian knew that Xin Tong was not lying to herself, he was different from those men who like to brag.

Obviously, the teenager has read the Six Sigma book, but reading the book does not mean that he will use the theory in the book. She wants to remind the teenager to pay attention to the control of key parameters.

"Of course I know, this is the control limit. UCL is the abbreviation of the English Upper control limit, and LCL is the abbreviation of the English Lower control limit. They represent the upper and lower control limits respectively. Generally speaking, the control limits are much stricter than the specification limits." Xin Tong clicked. Nodding, he replied with a smile.

The proposal of UCL and LCL has completely subverted the traditional cognition.

"If all the control points fall within the control limits, do you know how much the yield rate can achieve?" Changhua continued to ask.

If the teenager notices this relationship, he should take relevant measures to control the key control points of the product in a small range, thereby achieving the goal of improving production yield.

"It is stated in the book that when the process is in a stable state, its distribution usually conforms to the normal distribution. From the properties of the normal distribution, the probability that the product quality characteristic data appears outside the mean plus or minus three standard deviations It is only 0.27%, if the control points can be controlled in the control map, the yield should be 99.73%." The boy blinked his eyes and replied.

It's really amazing that the production yield can be known in advance through control.

Before that, planning was up to people and success was up to God. He only knew how to do his job well. Things like yield depended on God, and only God knew.

"Xin Tong, think about it, when you increase the yield rate to 99.73%, where will you be on the hero list?" He Silian continued to remind.

The boy thought for a while and said, "No.1!"

Currently, Wu Lei's yield rate is 99.66%. If he can raise the product yield rate to 99.73%, he will be far away from the top of the list.

"Then you should know how to do it!" He Silian smiled, swayed her body, and floated away like a spring breeze.

The boy looked at the back of the factory flower and fell into deep thought.

What Holstein said is right, if the control point is controlled within plus or minus three standard deviations using the X bar-R Chart, then the yield rate of the bonding process can reach at least 99.73%.

If the control is good, 99.8% is not impossible.

I heard that when Wu Lei competed with Shi Kaitian last year, Shi Kaitian's score was 99.68%.

From this point of view, as long as he adopts the SPC technique, not only can Wu Lei be defeated, even his boss, the manufacturing engineer, will also be defeated.

Why!Why didn't I think of it?
After a while, the young man patted his head and suddenly became enlightened!

Thank you for the reminder of Changhua. At a critical moment, this kind of reminder is too timely.

It seems that she is very passionate about herself, and it is really a blessing to have such fans in the basketball game.

We must play well in the next knockout match against the Personnel and Administration Department.

　Success is inseparable from the help of noble people!

　　
　
(End of this chapter)