年产600吨碳化硅微粉项目可行性研究报告.doc

Benton, the local butcher, had lost his wallet while taking his savings to the post-office. Sam was sure that the wallet must have been found by one of the villagers, but it was not returned to him. Three months passed, and then one morning, Sam found his wallet outside his front door. It had been wrapped up in newspaper and it contained half the money he had lost, together with a note which said: A thief, yes, but only 5o per cent a thief! Two months later, some more money was sent to Sam with another note: Only 25 per cent a thief now! In time, all Sams money was paid back in this way. The last note said: I am 100 per cent honest now!lesson46 Expensive and uncomfortable 既昂贵又受罪When a plane from London arrived at Sydney airport, workers began to unload a number of wooden boxes which contained clothing. No one could account for the fact that one of the boxes was extremely heavy. It suddenly occurred to one of the workers to open up the box. He was astonished at what he found. A man was lying in the box on top of a pile of woollen goods. He was so surprised at being discovered that he did not even try to run away. After he was arrested, the man admitted hiding in the box before the plane left London. He had had a long and uncomfortable trip, for he had been confined to the wooden box for over ten hours. The man was ordered to pay &345 for the cost of the trip. The normal price of a ticket is &230 !Lesson47 A thirsty ghost 嗜酒的鬼魂A public house which was recently bought by Mr Ian Thompson is up for sale. Mr Thompson is going to sell it because it is haunted. He told me that he could not go to sleep one night because he heard a strange noise coming from the bar. The next morning, he found that the doors had been blocked by chairs and the furniture had been moved. Though Mr Thompson had turned the lights off before he went to bed, they were on in the morning. He also said that he had found five empty whisky bottles which the ghost must have drunk the night before. When I suggested that some villagers must have come in for a free drink, Mr Thompson shook his head. The villagers have told him that they will not accept the inn even if he gives it away. Lesson48 Did you want to tell me something? 你想对我说什么吗？Dentists always ask questions when it is impossible for you to answer. My dentist had just pulled out one of my teeth and had told me to rest for a while. I tried to say something, but my mouth was full of cotton-wool. He knew I collected birds eggs and asked me whether my collection was growing. He then asked me how my brother was and whether I liked my new job in London. In answer to these questions I either nodded or made strange noises. Meanwhile, my tongue was busy searching out the hole where the tooth had been. I suddenly felt very worried, but could not say anything. When the dentist at last removed the cotton-wool from my mouth, I was able to tell him that he had pulled out the wrong tooth. Lesson49 The end of a dream 美梦告终Tired of sleeping on the floor, a young man in Teheran saved up for years to buy a real bed. For the first time in his life, he became the proud owner of a bed which had springs and a mattress. Because the weather was very hot, he carried the bed on to the roof of his house. He slept very well for the first two nights, but on the third night, a storm blew up. A gust of wind swept the bed off the roof and sent it crashing into the courtyard below. The young man did not wake up until the bed had struck the ground. Although the bed was smashed to pieces, the man was miraculously unhurt. When he woke up, he was still on the mattress. Glancing at the bits of wood and metal that lay around him, the man sadly picked up the mattress and carried it into his house. After he had put it on the floor, he promptly went to sleep again.Lesson50 Taken for a ride 乘车兜风I love travelling in the country, but I dont like losing my way. I went on an excursion recently, but my trip took me longer than I expected. Im going to Woodford Green, I said to the conductor as I got on the bus, but I dont know where it is. Ill tell you where to get off, answered the conductor. I sat in the front of the bus to get a good view of the countryside. After some time, the bus stopped. Looking round, I realized with a shock that I was the only passenger left on the bus. Youll have to get off here, the conductor said. This is as far as we go. Is this Woodford Green ? I asked. Oh dear, said the conductor suddenly. I forgot to put you off. It doesnt matter, I said. Ill get off here. We are going back now, said the conductor. Well, in that case, I prefer to stay on the bus, I answered.Lesson51 Reward for virtue 对美德的奖赏My friend, Herbert, has always been fat, but things got so bad recently that he decided to go on a diet. He began his diet a week ago. First of all, he wrote out a long list of all the foods which were forbidden. The list included most of the things Herbert loves: butter, potatoes, rice, beer, milk, chocolate, and sweets. Yesterday I paid him a visit. I rang the bell and was not surprised to see that Herbert was still as fat as ever. He led me into his room and hurriedly hid a large parcel under his desk. It was obvious that he was very embarrassed. When I asked him what he was doing, he smiled guiltily and then put the parcel on the desk. He explained that his diet was so strict that he had to reward himself occasionally. Then he showed me the contents of the parcel. It contained five large bars of chocolate and three bags of sweets! Lesson52 A pretty carpet 漂亮的地毯We have just moved into a new house and I have been working hard all morning. I have been trying to get my new room in order. This has not been easy because I own over a thousand books. To make matters worse, the room is rather small, so I have temporarily put my books on the floor. At the moment, they cover every inch of floor space and I actually have to walk on them to get in or out of the room. A short while ago, my sister helped me to carry one of my old bookcases up the stairs. She went into my room and got a big surprise when she saw all those books on the floor. This is the prettiest carpet I have ever seen, she said. She gazed at it for some time then added, You dont need bookcases at all. You can sit here in your spare time and read the carpet! Lesson53 Hot snake 触电的蛇At last firemen have put out a big forest fire in California. Since then, they have been trying to find out how the fire began. Forest fire are often caused by broken glass or by cigarette ends which people carelessly throw away. Yesterday the firemen examined the ground carefully, but were not able to find any broken glass. They were also quite sure that a cigarette end did not start the fire. This morning, however, a fireman accidentally discovered the cause. He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line. In this way, he was able to solve the mystery. The explanation was simple but very unusual. A bird had snatched up the snake from the ground and then dropped it on to the wires. The snake then wound itself round the wires. When it did so, it sent sparks down to the ground and these immediately started a fire.Lesson54 Sticky fingers 粘糊的手指After breakfast, I sent the children to school and then I went to market. It was still early when I returned home. The children were at school, my husband was at work and the house was quiet. So I decided to make some tarts for tea. In a short time I was busy mixing butter and flour and my hands were soon covered with sticky pastry. At exactly that moment, the telephone rang. Nothing could have been more annoying. I picked up the receiver between two sticky fingers and was dismayed when I recognized the voice of Mrs Bates. It took me ten minutes to persuade her to ring back later. At last I hung up the receiver. What a mess! There was pastry on my fingers, on the telephone, and on the door-knobs. I had no sooner got back to the kitchen than the door-bell rang loud enough to wake the dead. This time it was the postman and he wanted me to sign for a registered letter !Lesson55 Not a gold mine 并非金矿Dreams of finding lost treasure almost came true recently. A new machine called The Revealer has been invented and it has been used to detect gold which has been buried in the ground. The machine was used in a cave near the seashore where-it is said-pirates used to hide gold. The pirates would often bury gold in the cave and then fail to collect it. Armed with the new machine, a search party went he did not like it. She enjoyed herself making the assistant bring almost everything in the window before finally buying the dress she had first asked for.Lesson58 A blessing in disguise? 是因祸得福吗？The tiny village of Frinley is said to possess a cursed tree. Because the tree was mentioned in a newspaper, the number of visitors to Frinley has now increased. The tree was planted near a church fifty years ago, but it is only in recent years that it has gained an evil reputation. It is said that if anyone touches the tree, he will have bad luck; if he picks a leaf, he will die. Many villagers believe that the tree has already claimed a number of victims. The vicar has been asked to have the tree cut down, but so far he has refused. He has pointed out that the tree is a useful source of income as tourists have been coming from all parts of the country to see it. In spite of all that has been said, the tourists-have been picking leaves and cutting their names on the tree-trunk. So far, not one of them has been struck down by sudden death!Lesson59 In or out ？ 进来还是出去？Our dog, Rex, used to sit outside our front gate and bark. Every time he wanted to come into the garden he would bark until someone opened the gate. As the neighbours complained of the noise, my husband spent weeks training him to press his paw on the latch to let himself in. Rex soon became an expert at opening the gate. However, when I was going out shopping last week, I noticed him in the garden near the gate. This time he was barking so that someone would let him out ! Since then, he has developed another bad habit. As soon as he opens the gate from the outside, he comes into the garden and waits until the gate shuts. Then he sits and barks until someone lets him out. After this he immediately lets himself in and begins barking again. Yesterday my husband removed the gate and Rex got so annoyed we have not seen him since. Lesson60 The future 卜算未来At a village fair, I decided to visit a fortune-teller called Madam Bellinsky. I went into her tent and she told me to sit down. After I had given her some money, she looked into a crystal ball and said: A relation of yours is coming to see you. She will be arriving this evening and intends to stay for a few days. The moment you leave this tent, you will get a big surprise. A woman you know well will rush towards you. She will speak to you and then she will lead you away from this place. That is all. As soon as I went outside, I forgot all about Madam Bellinsky because my wife hurried towards me. Where have you been hiding ? she asked impatiently. Your sister will be here in less than an hour and we must be at the station to meet her. We are late already. As she walked away, I followed her out of the fair. Lesson61 Trouble with the Hubble 哈勃望远镜的困境In future, astronauts will be required to descend from a spaceship while it is still in space and to return to it. The ability to do this will be necessary in future flights to distant planets. Scientists are now trying to discover if this is possible. The spaceship Astra which left the earth a short time ago, will be travelling three hundred miles into space. At a certain point, the Astra will stop for a short time and an astronaut will attempt to leave the stationary spaceship and then return to it. We shall not know whether the experiment has been successful until we have received a radio message. The first message is expected to arrive at 7 oclock this evening. By that time, the Astra will have been flying through space for seventeen hours and will have circled the earth a great many times. When the first radio messages have been received, the results of the trip will be announced immediately.Lesson62 After the fire 大火之后Firemen had been fighting the forest fire for nearly three weeks before they could get it under control. A short time before, great trees had covered the countryside for miles around. Now, smoke still rose up from the warm ground over the desolate hills. Winter was coming on and the hills threatened the surrounding villages with destruction, for heavy rain would not only wash away the soil but would cause serious floods as well. When the fire had at last been put out, the forest authorities ordered several tons of a special type of grass-seed which would grow quickly. The seed was sprayed over the ground in huge quantities by aeroplanes. The planes had been planting seed for nearly a month when it began to rain. By then, however, in many places the grass had already taken root. In place of the great trees which had been growing there for centuries, patches of green had begun to appear in the blackened soil. Lesson63 She was not amused 她并不觉得好笑Geoffrey Hampden has a large circle of friends and is very popular at parties. Everybody admires him for his fine sense of humor-everybody, that is, except his six-year-old daughter, Jenny. Recently, one of Geoffreys closest friends asked him to make a speech at a wedding reception. This is the sort of thing that年产600吨碳化硅微粉项目可行性研究报告大连微创商贸有限公司2008年4月第一章 总论第一节 项目背景一、项目名称年产600吨碳化硅微粉项目。二、承办单位概况项目承办单位是大连微创商贸有限公司。大连微创商贸有限公司是2007年成立的私营有限责任公司，注册资本50万元，经营国内一般贸易（法律、法规禁止的项目除外）。根据公司总体发展战略，公司地址注册在大连甘井子区凌水镇，背靠高新技术园区，左邻大连理工大学，在一些项目的发展和研讨上建立有利的人脉和地脉网络。三、可行性研究报告编制依据1、投资项目可行性研究指南2、一般工业项目可行性研究报告编写大纲3、大连市国民经济和社会发展第十个五年计划纲要4、项目建议书及其批复文件5、委托方提供的其他有关材料四、项目提出的理由与过程碳化硅是硅的一种碳化物，俗称金刚砂。分子式为SiC。碳化硅是由石英砂和石油焦碳在高温下还原反应生成，是典型的共价键化合物，其理论密度为3.183.20g/cm3,莫氏硬度在9.2-9.3之间，显微硬度3300kg/mm2，碳化硅硬度高，耐高温，抗氧化、遇强酸，遇强碱不起反应，导热性好，具有很强的抗辐射能力。目前我国工业生产的碳化硅分为黑色碳化硅和绿色碳化硅两种，本项目产品为绿色碳化硅微粉。 碳化硅在以下领域得以应用1是IT产业不可缺少的切割、磨削材料碳化硅是典型的共价键结合的化合物，键合能力极强，化学性能及热力性能稳定，是磨料行业不可缺少的成员之一，被称之为工业的牙齿，被广泛应用于机械加工及钛合金、有色金属、石材、光学玻璃、宝石的磨削。近年来，国内外光伏产业和IT产业的迅猛发展，对半导体硅晶圆和多晶硅的加工提出了更高的要求，经国外发达国家实践证明：绿碳化硅微粉是半导体硅晶圆和多晶硅切割、研磨、抛光不可替代的材料。2是良好的冶金、农业、化工材料碳化硅用于轧钢机托辊上，它比金属托辊有更好的耐热性和耐磨性，延长使用寿命，提高钢材质量；低品位的碳化硅是炼钢脱氧剂、铸铁添加剂的良好材料。碳化硅用作耐火材料的数量大于用于用作磨料的数量，高档陶瓷窑具、电瓷烧结窑具、炼锌液和炼铁业的高炉出铁口、铁水沟、电解铝业的电解槽等都使用的是碳化硅耐火材料。用碳化硅制作的磨辊磨米，能够提高米的质量，出品率提高2%，成本下降40%。利用碳化硅很强的耐磨蚀性，用作化工行业的密封、泵套筒、热交换器、热电偶保护管等。用作高温间接加热材料,如坚罐蒸馏炉精馏炉塔盘,铝电解槽,铜熔化炉内衬,锌粉炉用弧型板,热电偶保护管等用于大型高炉内衬提高了使用寿命碳化硅硬度仅次于金刚石,具有较强的耐磨性能,是耐磨管道叶轮泵室旋流器,矿斗内衬的理想材料,其耐磨性能是铸铁.橡胶使用寿命的520倍,也是航空飞行跑道的理想材料之一3是优质的工程陶瓷材料近年来，国际上发达国家十分注重高技术陶瓷的开发和研究，目前已形成世界的“陶瓷热”。而碳化硅以它特有的高硬度、耐磨损、耐酸碱腐蚀