Qin Zhao stood beside him and began to plan his own sofa deal.

In fact, even in this era, sofas were not unprecedented. In fact, people used soft cushions to cushions on chairs in the Ming Dynasty, called "soft shops", and were also a common product for families of officials and gentry. In the contemporary Europe, soft cushions using cotton, kapok and even sponges emerged one after another.

However, these things have disadvantages. The most important thing is that once these materials are pressed down, it is extremely difficult to bounce back. In the end, the butt is still sitting in a small area, and the contact area between the chair and the body is limited.

This is the first time that Qin Zhao has made a sofa that really uses springs to increase the contact area between the chair and the human body.

However, after Qin Zhao's sofa was released, many people will definitely imitate it. After all, the internal structure of this kind of furniture is simple, and you will understand what is going on when you disassemble it.

Qin Zhao’s only advantage is the quality of the sofa.

This quality is first guaranteed by Su Steel. Those who imitate Qin Zhao's sofa will definitely not be willing to use Su Steel as springs, but use ordinary steel. In this way, their spring quality will be far inferior to Qin Zhao's. Secondly, Qin Zhao knows how to heat-treat springs, and the heat treatment process of springs is basically no one mastered in this era, because there is no large-scale production of springs at all. Therefore, the quality of springs produced by Qin Zhao will be further superior to those of competitors.

The advantage of Qin Zhao's sofa is the advantage of springs.

However, this advantage is actually very obvious. Just imagine sitting on a sofa that has no elasticity after sitting down. The experience is naturally not much better, just like sitting directly on a collapsed sponge. And sitting on a sofa where the entire hips are supported after sitting down, the degree of comfort is very different.

Qin Zhao placed an order for the ox cart wire for Liu Datou and left the blacksmith shop.

The problems of raw materials and technical have been solved, and production and sales are ready for the next step.

First, you need to rent a grand storefront.

Qin Zhao is preparing to compete with the endless counterfeiters this time, so he has to take the branding and high-end route from the beginning. The idea of ​​not being afraid of deep alleys is incompatible with the fact that sofas can easily imitate products. Qin Zhao decided to promote the brand from the beginning, so that the name of Qin's sofas has spread throughout the city.

The imported noun of sofa was not understood by people in the Ming Dynasty, and it was not easy for people to think of the actual appearance of this product. Qin Zhao decided to name the sofa as Qin's spring soft chair.

Once this name is said, others can imagine the softness and comfort of sitting on it.

Qin Zhao and Qin Youli traveled around Guangzhou City for another two days, and finally found a storefront in the fireworks alley "Hongliu Street" in Xiguan. There happened to be a Dengji silk shop there that was not good at management and wanted to transfer it. The store had three wide rooms, and there were five tiled houses in the courtyard. On the left was a fireworks kiln "Stealing Fragrance Tower" and on the right was next to the largest tram in Guangzhou City.

Qin Zhao fell in love with his location and paid a transfer fee of 500 taels to rent it.

The rent for this big shop is not cheap, it rents one or two or three cents a month.

There was no rental contract in the Ming Dynasty, and the rent price was completely negotiated with the landlord. Qin Zhao rented this shop and felt unsafe, worried that the landlord would always raise the rent. Fortunately, there were many shops on this road. If the landlord's rent increased too much in the future, Qin Zhao would move the business to the opposite door, which would not affect the business much.

In fact, it is more straightforward to buy a shop, but the landlord of this shop has no intention of selling the shop. It is even more difficult for landlords who are interested in selling the shop. Even if they find the location of the shop, it may not be ideal. This kind of thing is not urgent, so you have to pay attention to it later.

At this time, opening up sales is the first goal at present, and it is important to get close to the shops of target consumers.

The shop rented by Qin Zhao is located in the middle of the fireworks alley. The storefront is spacious and everyone walking in front of the door is rich to enjoy. Compared with the abortions that are shoulder to shoulder on the main street of Xiguan, there are certainly not many abortions here, but the pedestrians here are rich, which are Qin Zhao's potential target consumer groups.

Those who have money to visit the kilns and spend money in brothels at two units will not think that Qin Zhao's sofa is expensive.

There were a lot of furniture left by silk merchants in the storefront, including the living furniture in the backyard. Qin Zhao and Qin Youli looked around and felt that there was no need to buy anything for the time being.

After all, the sofa is made on the ground and there is no need for shelves and containers to be placed.

It took three days for the two to find the storefront to rent it. Liu Datou had already made a cart of iron wire. The two felt that the trip was worth it, so they hired a ox cart and pulled the wire back to Qinjia Village.

Back at Qinjia Village, Qin Zhao found three single blacksmiths in the nearby village and spent two days building three iron burning stoves on the Chiyun Peak.

The first blacksmith heats the wire, wraps the burnt iron wire onto the iron stick and turns it into a spring, and then heat-treated and quenches. After the first blacksmith completes the quenching, Qin Zhao finds a helper to send the cooled spring to the second room, and the second blacksmith returns the temperature. Then another helper sends the spring to the third room, and the third blacksmith is responsible for the oven, baking it at high temperature for a while to eliminate the stress of the spring.

The so-called quenching refers to heating the steel to a temperature above the critical temperature, keeping it in heat for a period of time, making it fully or partially austenitized, and then quickly cool to a low temperature state at a cold speed greater than the critical cooling speed to undergo martensite or bainite transformation. The materials used in quenching in the Ming Dynasty were oil and water. Qin Zhao used water.

The so-called backtemper is a metal heat treatment process that reheats the quenched workpiece to an appropriate temperature below the lower critical temperature, allows the pearlite to transform into austenite, and cools in air, water, oil and other media after insulation for a period of time.

Stress removal refers to eliminating the inertial internal force of steel that maintains its original shape. Any workpiece produced will generate stress. Stress removal has various methods such as thermal aging, vibration aging, and natural aging. Qin Zhao used the first simple and fast "thermal aging" method.

There are many details in the heat treatment process, and the difference is a huge difference. In this way, three blacksmiths are responsible for the three heat treatment steps. Even if one person leaks the secret, Qin Zhao's secrets cannot be leaked.

These processes are not difficult, but the toughness of the steel will be greatly improved after heat treatment.

Qin Zhao was also involved in the product redesign of a domestic spring mattress manufacturer and only then did he know the details. That time, Qin Zhao's design agency inspected the various lines of the production company in detail for half a month, and understood the ins and outs of spring mattress production very clearly.

The three blacksmiths invited by Qin Zhao were all ordinary blacksmiths in the nearby village, with average skills. Fortunately, these blacksmiths were honest. He did whatever Qin Zhao gave them money. Qin Zhao broke their legs when he said that he dared to leak the secret. The three blacksmiths actually swear to the sky on the spot that they would not die if they leaked a little secret.

The most important thing for craftsmen in this era is to keep their skills confidential, making it difficult for them to pass on their skills. It is relatively simple to pass on their skills to prevent them from leaking their secrets.

Qin Zhao placed the three of them in Caiyun Peak, and forbidden them from going out for a short period of time. Each person was given a monthly payment of three taels and food and accommodation. If he missed home for a few months, he could go home under the surveillance of Qin Zhao's servants, but it was strictly forbidden to meet idle people from other villages and villages.

These blacksmiths gained the benefits of Qin Zhao, and forgot the trouble of not being able to go out for a while, so they came to think about their skills with peace of mind.

After all, it is really more than a month to cover food and accommodation for three taels of silver. Nowadays, craftsmen in Guangzhou can only get less than two taels of silver, and can support the whole family.

This is equivalent to the fact that other old carpenters in later generations get 5,500 yuan a month. If you are a new carpenter, the boss will give you 9,000 yuan, and you will also include food, accommodation, five insurances and one fund. If you count the total income of more than 10,000 yuan a month, it will make people feel that you have reached the peak of your life.

Under such conditions, it is impossible to go home every day.

Qin Zhao went in one room at a time and taught the blacksmiths step by step to explain the steps. The three blacksmiths were not too stupid, and they gradually understood and successfully completed the heat treatment of the spring.
Chapter completed!