"I'm afraid it will take about a month, in addition to vacation, he also has a very important thing, that is, I heard that this copper incense burner originally had a lid, and there are clues about this lid abroad······"

"If he finds the lid, he will buy this incense burner to death???" Konohira was very hurried when he asked this sentence, basically interrupting Tang Yi's words.

Tang Yi listened to Kono Ping's anxious tone, and his heart was relieved, and he couldn't help but shake his head lightly at Mao Zhu and Chen Chengzhi.

Konodaira's anxious words conveyed two messages, first, he knew that the copper incense burner had a lid, and second, the lid was not in his hand! If it was in his hands, he wouldn't be in such a hurry, because "Tang Yi's friend" would definitely not be able to find the lid of this copper incense burner.

That's what it means. So is Mr. Kono still waiting? Tang Yi continued.

"I can wait. In addition, if he finds the lid, I can buy it as well, and my father is obsessed with copperware, and I can't help it. However, I have one more request, this copper incense burner is an ancient bronze vessel after all, I hope that before the shot, do not burn incense casually, so as not to cause damage to the copper furnace! As soon as this remark came out, it showed that Kono Ping was really a little anxious, this should not be said, if Tang Yi was suspicious, it would obviously be very unfavorable to him.

However, Tang Yi already knew the secret, "Mr. Kono has been overly concerned, can such a precious copper incense burner of the Ming Dynasty really be used to burn incense?" ”

Kono Taira on the other end of the phone seemed to be a little relieved, and added "the price is negotiable" at the end.

Hanging up the phone, Tang Yi said, "He shouldn't have a cover, but he obviously knows about the cover, and he must know the secret." ”

"An imitation incense burner, let you know the secret, let me get the big pot, then this Japanese people will not lose a lot?" Chen Chengzhi said in a low voice.

"In the antique shop, it's not a big deal, it's good to go high and low, and Mr. Chen's imitation is no less valuable than the real thing." Tang Yi said with a smile, "This copper incense burner will be left to Mr. today, and I will talk about it when it is ready." ”

"Huh?" Chen Chengzhi raised his eyebrows, "This ······" The expression on his face changed many times in an instant.

Tang Yi looked at Chen Chengzhi, thinking that the old rivers and lakes are the old rivers and lakes, and he thinks a lot. This Chen Cheng came to think, such a valuable thing, said that if you put it here, you will put it here, not afraid that it will be gone? That's not the point, after all, one or two million things aren't worth his debts; The point is, if it is done at that time, one true and one false, this kid is so confident? Will you be able to tell when the time comes?

"When the time comes, I can exercise my eyesight again!" Tang Yi said.

"The old man has always acted like a villain before a gentleman, so you can stay here with this copper furnace and take away the Qianlong strangled enamel gossip bottle." Chen Chengzhi sighed, he is really bold, it seems that he has absolute certainty to distinguish the authenticity of this Chongzhen copper incense burner.

"This ······" Tang Yi smiled slightly and groaned. Mao Zhu's eyesight saw that it was not covered, and he knew that it was time for him to speak at this time, "I think, we might as well be respectful and obey our fate." The copper incense burner was left behind, and the jar was taken away. ”

Chen Chengzhi smiled, and did not break the cooperation between the two. Immediately, he picked up the incense burner again, weighed it very carefully, and poured his hands a few times in the middle, "This wind-milled copper smelting is extremely difficult, and I estimate that the gold content of this furnace is about three percent." ”

"Wind milled copper? Isn't it copper? Mao Qi couldn't help asking.

"Copper, another name for red copper, is essentially copper, which is a term for the classification of copper. And this wind-ground copper is actually a smelting method of copper. Chen Chengzhi explained, "The Xuande furnace is used for wind-milled copper, and this Chongzhen furnace is also used for wind-milled copper." ”

"It is said that the wind-ground copper is pure and dense and stainless for thousands of years, and I hope Mr. Chen will tell you in detail." Tang Yi didn't know much about wind-milled copper, so he asked.

"There are two things that the world has said is like a god. First, precious metals, such as gold, are added to the smelting process, which ensures that the bronze is not easy to rust, which is very different from the previous bronze that is prone to green rust. Such bronze ware has gone through the years, plus the pulp, it is really good-looking, the so-called Buddhist scripture color, but it is the color of gold aging and pulp. ”

Chen Chengzhi's introduction, unlike the rigid theory in the book, is all from practice, so it is particularly easy to understand, "This second, but also the actual source of this name, the Ming Dynasty copper smelting, using a large bellows, "wind mill", probably refers to the wind is full of fire, lasting and powerful. ”

"Crackling ·······"

Tang Yi and Mao Yi applauded together.

Chen Chengzhi waved his hand, "I can refine this wind-milled copper, but the materials needed for the lost wax method (note) used in casting this furnace are not easy to collect, and I am not short of beeswax, but this copper incense burner has gone through hundreds of years and needs to be pulped." This bag of pulp is said to be a later work, but in fact, the foundation must be laid when the furnace body is cast. ”

"You mean to say that some material needs to be added to the beeswax used in this copper furnace?" Tang Yi asked.

"yes." Chen Chengzhi glanced at Tang Yi appreciatively, thinking that this young man's thinking is indeed agile enough, "In this beeswax, a special material needs to be added, and the fit between the beeswax inner mold and the mud embryo can be particularly delicate. ”

"Mr. Chen, if you don't use this special material, what will be the impact of making the pulp of the incense burner?" Tang Yi thought about it, this so-called special material should not be easy to find.

"If not, it would take me a little longer to make the toning after molding, which doesn't matter because I didn't use it very much before. However, the color of the pulp may be a little brighter, although it is a subtle difference, and the so-called experts can't see it, but I'm afraid it can't hide it from the eyes of people of your level. Chen Chengzhi has obviously included Tang Yi among the top masters.

"Hey, there are a few people who have such poisonous eyes as him." Mao added a sentence one by one.

"Although this is the case, the old decay of the artifacts is all about perfection, leaving no flaws, although experts like Mr. Xiao Tang are rare, but there are still some. Especially this time, I didn't dare to be sloppy. Chen Chengzhi explained.

Tang Yi's heart sank, what kind of special material is this? He didn't say it clearly, didn't he have the intention of prevarication again?

Note: Lost wax method

The lost wax method is a method of casting bronze objects, which was used by the ancients as early as the time of casting bronze objects. If you use today's technical vocabulary, it is investment precision casting.

The lost wax method, as the name suggests, is to be "lost" in the end. This method is to use beeswax mixed with grease to make an inner mold, and then apply mud on the inner mold, reserve the lower hole, and make the outer model; When the outer mold is dry, and then fired at high temperature, the inner mold will naturally turn into a liquid and be discharged from the hole. In this way, the inside of the outer fan of the clay embryo is empty, and then the burned copper liquid is poured into it, and after the cold is shortage, the outer fan is removed, and the copper ware is the same as the inner mold of beeswax.

The lost wax method has appeared since the Spring and Autumn Period and the Warring States Period, such as the Zunpan in the tomb of Marquis Yi of Zeng, and the dense pattern of the Pan is very rich and complex. However, the application of the lost wax method is not widespread, and there are not many ancient works that can be seen.

The Xuande furnace is also cast using the lost wax method, which is clearly recorded in the "Xuande Ding Yi Spectrum".

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