I don't want to explain too much about this certification itself: it was initiated by AWS of American Welding Society, and authorized Moody's International and Shanghai Welding Society (these are two authorized institutions that I know at present, and Shanghai Welding Society is also possible, but it was actually done with Moody's) for training and examination. The training examination is divided into three parts: A welding inspection technology (that is, welding and other related basic theories), B standard and C practical operation, and the certificate can be obtained if all three courses reach 72%. After obtaining the certificate, he has the right to interpret any standards within his jurisdiction, including but not limited to: D 1. 1 welding specification for carbon steel structures, D 1.5 welding specification for bridges, D 1.6 welding specification for stainless steel, API1.
Profile of participants in the training: I counted 28 people in this period (this seems to be the largest number of one-time training for Modi, because the capacity of the classroom used for training is limited), of which 13 people participated in the training and examination for the first time, 14 people participated in the make-up examination, and 1 person was promoted to advanced level after holding the certificate for 9 years. There are all kinds of industries and regions, such as those who work locally in Shanghai like me and those who are as far away as Lanzhou; Pressure vessels, steel structures, offshore platforms, pipelines and other industries; The largest number is Shanghai Zhenhua Heavy Industry, and there should be six or seven initial and make-up exams.
The first is a five-day training, the welding inspection technology is explained in the first three days, and the standard is explained on the fourth day (Moody's talks about D 1. 1, API 1 104 is basically not explained), and the actual operation is the welding inspection manual on the fifth day. These three courses are all explained by teacher Zhao. Seven hours a day at most.
There is a book "Welding Inspection Technology" on the Internet, which is not very detailed, such as inspection safety, welding symbols, metallography, material properties and nondestructive testing, conversion of metric and British units, nondestructive testing and its symbols, welding discontinuity and so on. PPT presentation in both Chinese and English. Moreover, the content of the book has not changed substantially, and the content is wide and miscellaneous, but not deep.
In fact, I don't think the standard interpretation has much substantive significance. A book with hundreds of pages is usually turned only once, so don't expect the teacher to teach you anything specific on this day. If you haven't read this standard in private, you will get nothing by Teacher's Day.
Practical operation is to check the contents, filling methods and usage methods of more than a dozen forms in the workbook. Finally, students will be given a batch of defective specimens and conventional tools that are very close to the exam, such as micrometer, ten thousand feet, vernier caliper, fillet weld gauge and so on. You can get familiar with it, because these things are used to answer questions during the exam.
Within three days, of course, it also includes doing the questions and checking the answers. I sent a book, which was recycled. This issue is used up, put it away and use it in the next issue. The book is old, with drawings and sketches of former students on it. This is actually a scanned PDF version circulating on the Internet. The teacher just asked him to do it himself in the evening, say the answer the next day and explain the problems in the question. But the teacher still has some questions that can't be leaked. Without online questions, it is more difficult, closer and even the same as the questions in the exam. It's good for you to be careful when you do this part of the exercise.
The last day of the exam: one in the morning and two in the afternoon; Students are divided into three groups and tested with different contents at the same time. The test order of seven or eight students in my group is B, C and A; Another group of students are A, B and C; The other group is C, A and B; This practice is to avoid cheating on the same test paper; But there is actually another problem, that is, after the one-stop exam, you can reveal some topics to others more or less according to your own memory. Some students who know each other or come from the same unit are assigned to the same group. Cheating still exists. Personally, it is still very serious. Part a is closed and the topic should be the same; Part b is definitely different, because the standards used are D 1. 1, API1104; As for part C, I'm not 100% sure. It seems to be the same, because the samples and tools used in the exam look the same, but the defects on them are different, so your answer is different.
The exam questions themselves are not very difficult. These three courses are the same. Given enough time, you can finish it and get the correct answer. The key is not enough time. I was very impressed with Part A, and there were 150 questions, all of which were single-choice. We should be very careful about the chapter on welding symbols. I don't think there are 10 questions, but there are at least 8 questions, so we just need to test the welding symbols. It took me 50 minutes to do what I could for the first time. There are still about 20 questions left to do, and I have tried about 10 questions; There are still 10 channels left, but I really don't know how to choose them, but I accidentally found some problems when translating the topic: Chinese translation deviates from the true meaning of the English original, and it is very easy to choose the correct answer if you look at the English original carefully, but it is because of this translation that I feel this problem is specious. Is this right? It seems wrong. Let's change the answer. It's the same feeling. I feel that there are about five types. The most important three or four questions are really no problem to translate, and I really can't do it myself, so I got the answer by feeling. This stage took me 20 minutes. After all the answers, I began to draw the answer sheet: I finished it quickly on the premise of ensuring the quality-it took me 20 minutes, with an average of 7.5 sheets per minute; There are still 30 minutes to check, and when I check to about 80 questions, the time is up. From the beginning, I felt that I had no time to breathe. There are 50 questions in part B and 46 questions in part C. The number is much less, but it is much more difficult. Part B depends on the speed at which you turn over the book, that is, how familiar you are with the standard itself, but it is not all the dead clauses in the book. You need to combine these terms with the chart. Don't just look at the picture or look at it. Look at the comments below. The traps are all here! I really don't know where to look for two questions, so I chose one by feeling. Part C should be familiar with the inspection manual (a new one will be issued during the exam and recycled during the exam). For example, how many courses should I take in the welder skill exam (of course, the topic in the actual exam can't be so simple, and the form is similar)? You have to turn to the welder skill evaluation table and the mechanical performance test table of the specimen quickly. If you are slow, you can't keep up with the speed of doing the problem. Then there are defective specimens. Measure the size and quantity of defects on the specimen with tools, calculate the sum, and then judge whether it is qualified according to the defect criterion, which also involves the application of tables.
In short, the topic is not difficult, but time is extremely tight!
Let's talk about the students. Experienced people, such as a veteran who has only been certified for 9 years, came to SCWI in the senior year. Most of them are similar to people with four to six years' experience like me. Of course, some students have less work experience and even think they are amateurs, because you can see his "weight" from the way he asks questions and the questions he asks. One day, his repeated "low-level" questions angered the teacher. Teacher Zhao bluntly said to him: "When we explained the abilities that inspectors should have in the first class, we mentioned one of them: inspectors should have the ability to receive training. You are a typical person who does not have the ability to receive training. " Others are more interesting. I have been in class for three days, and I am going to explain D 1. 1. Teacher Yang, who is in charge of training, reminded me: "Explain the standards tomorrow, please bring the standards tomorrow." Someone stood up: "Teacher, what standard? What if there is no standard? " Let the teacher laugh and cry: "bring money this afternoon, I have 365 copies to sell here." I am ecstatic to take the CWI exam, but I don't know what standards to take and what standards to take! If this kind of student is really admitted, I can only give a thumbs up: you are too NB!
Let me talk about my own preparation first. I actually knew something about CWI very early, and I set a goal to win her very early. So in 2009, when the 08 version of D 1. 1 Chinese was just released, I bought it (I had an email with Mr. Liu Liu, the former general manager of Changzhou Base of Zhenhua Heavy Industry, who was responsible for translating this book, so I had a general understanding of the release progress of the Chinese version of this book). American standard products in the factory also use this standard (also D 1.6), but I didn't really read and understand it as a whole before preparing for the exam, because I do inspection, and I usually use Chapter 4 evaluation and Chapter 6 inspection. In July of 1 1, I felt that it was time to really start preparing, and I experienced at least D 1. 1 four times. I read it sentence by sentence, not in general terms (I don't understand some contents, such as the part of chapter 2 design, testing the ultrasonic detection of chapter 1, which I haven't done before, and I feel very difficult, but I don't actually take the exam). My feeling is that this book is extensive and profound, and I can only call it a barely introductory book. I don't know how long it will take to understand and use it. But these readings at least let me know: in which part of the book I find what I want. Remind again: don't expect the teacher to explain how much a day's standard can give you. It's impossible. It depends on familiarity and preview in advance.
The essence of inspection technology is a summary of the knowledge that an inspector should know, which is not very deep, but has a wide range of contents. It is very helpful to learn metallurgy and heat treatment well. I have read this book four or five times, so when I was training, I heard that many people failed this course. I am surprised, unexpected and incomprehensible: it won't be that difficult, will it? Now I'll sum up a sentence: if you fail this course, you can only prove one problem: you didn't spend time or prepare carefully at all. As long as you spend time and energy, you won't fail this course. Because of 150, you made 42 mistakes, which is really tolerant! Even if time is tight, you shouldn't even fail this door! ! ! You can easily keep up with the teacher's rhythm by watching it several times before training, plus his explanation and overall combing, you can't even think about it.
Part c inspection manual, one is a familiar little book, which is the kind of form that can be found quickly when taking the exam; The second is the use of common inspection tools; Third, I think it is the accumulation and understanding of daily work, which is not provided by this little book. The simple analogy is the specimen inspection of welding procedure qualification and skill qualification, which is nothing more than these items: appearance inspection, nondestructive testing and destructive experiment. Appearance inspection is basically necessary, and nondestructive testing is generally necessary for process evaluation, but skill evaluation varies according to different standards. Some are necessary and some are not. Just use visual inspection and destructive experiments. Destructive experiments, most of the standards are two pulls and four bends, some thick materials involve back bending, and those sensitive to heat input involve impact. API 1 104 may also have a special notch hammer test and so on. If you have done this process and read the relevant standards, the standards in these tables are almost the same. You can understand at a glance that it is easier, and turning pages is just a confirmation to reassure yourself. If you haven't done it, it may be a little harder. This part of the review in advance is actually a summary and accumulation of your actual work experience. That little book is of some use, but it is more important in peacetime.
Let's talk about the application of English in training. It doesn't mean that you can't pass the exam if you don't know English. It's not that serious. However, knowing English, especially welding English, will bring you unexpected benefits. I realized two things: First, PPT is bilingual when the teacher is explaining the inspection technology. The first PPT is in English and the last PPT is in Chinese. In fact, the content is exactly the same, just translated, but the teacher will inadvertently stay in the English version when explaining, and skip the Chinese version directly after explaining. I can't speak English at all, so this time is particularly uncomfortable, because you can only listen and can't read! The second point is what I said above: the translation of exam questions is much more accurate than the translation of exercise questions we have done, but it is still not 100% avoidable. If you know English, you may have the same situation when answering questions. This time is an unexpected harvest!
Then there is the choice of examination standards. I'm not sure what standards Moody can adopt, but D 1. 1 and API 1 104 are affirmative. I can tell you responsibly: if you really want to learn how to read and understand a standard, then study and prepare d1.1; If you just want to get this certificate, then choose API 1 104. Because the difficulty of both is not an order of magnitude at all. D1.1* * has more than 600 pages. In addition to the appendix and the design and ultrasound that are generally not tested, I am afraid there are still 300 pages, and the content is all-encompassing, the language is abstruse, and there are many charts and diagrams, which are difficult to understand; But if you really understand this standard thoroughly, basically all other welding standards are not too big a problem. D 1. 1 itself is the mother of all structural construction specifications of D 1 series, and others such as D 1.5 are separated from her and have more or less contact with her. The API 1 104 is different. It's much simpler, less. One page is about 70 pages, and I only read the English version once a week. What's more, the contents in it are very routine terms of process evaluation, skill evaluation and nondestructive testing, and what can and can't be done. It's rare that you can't understand what she said after reading the text once. But in D 1. 1, I personally feel that this phenomenon is very much. After I watched it twice, I began to feel something. Of course, it may also be because of the limitations of talent. Many students of Zhenhua Heavy Industry are engaged in offshore platforms, but they all got the exam 1 104. I thought they were pipes. Later, they explained that many people in their company had passed CWI and had rich experience. The conclusion is that 1 104 is much more difficult than D 1. 1, and there is no comparability at all!
I want to talk about this certification and IWE. Last July, at the request of European customers, I also went to Beijing, took the IWE exam and got the certificate with excellent results. The differences between them are as follows: IWE is a European standard and CWI is an American standard; IWE focuses on technology, that is, engineer training; CWI, as its name implies, focuses on investigation; IWE takes a long time, one month; As soon as CWI arrives at * * *, it lasts for 6 days; The contents of the two are different because of the different welding and metallurgical systems, but personally it doesn't matter. A notable advantage of CWI is that it is more practical, more specific and closer to practical application, because it is an evaluation of actual standards. IWE is a bit like a summary of the welding knowledge I have learned in my university for four years, and then combined with my actual production experience, I made a comb from front to back.
Finally, let me talk about my views on certificates: many people, especially those who think they are NB, look down on certificates and think that certificates are simply collecting money. Textual research is only for cosmetic purposes, and it is of little use. My views are as follows: in the final analysis, human ability is omnipotent; Certificate is not everything, but sometimes, without certificate, you can't do anything. My company has met it, and so has my classmate's company: foreign customers say: I don't care how many senior engineers you have in China, how many engineers you have. I will ask you: is there our (European and American) certification? Yes, let's talk about it later or give you the list directly; No, that's it. This is at the company level. Looking at the personal level, we can find the recruitment information of our industry on several major talent websites. Those big enterprises, such as Siemens, ABB, Hartford, etc. , all have a five-figure monthly salary, and the conditions are just a few: 1.5 years of work experience; 2. Fluent in English, especially welding English; 3. Certification of authoritative organizations such as 3.IWE, CWI, SSPC and CSWIP. I am more realistic. I came out to work to find a good job and make my life better in the future. So, I'll do whatever you need. Five years of experience, there is no way, slowly accumulate, time is not enough, I can't have five years of experience, but as long as one to five years, this condition will not limit my future; If you want English, I will spend more time than welding and 20 thousand yuan to learn English. I can read the English version of ASME IX volume and other welding standards, which have been adhered to for several years. I have never given up and will continue in the future. If you want certification, I will do it at my own expense. What's more, I'm not researching for the sake of researching. Take CWI as an example. I have read D 1. 1 four times, and I have read the inspection technology five times. Other related standards mentioned, such as AWS B 1. 10 visual inspection guide, AWS A2.4 welding symbols, AWS A3.0 standard welding terms and their definitions, have been found in English. It doesn't mean that I fully understand this standard after reading it four times and five times. I am a qualified and excellent welder, but as a welder, I accumulate bit by bit and grow bit by bit. In order to obtain the certificate, I worked hard and gained the ability; Getting the certificate proves my ability, because not all cats and dogs can get these certificates. Some people get certificates as easy as blowing off dust, and I can only give a thumbs up: you are great. But I'm not jealous. A certificate may not be difficult to obtain, but only I know how much I have paid and how much I have gained, and I will never regret it.
There is also the use of certificates. I always see many people asking in forums: Do state-owned enterprises recognize IWE/CWI? I don't quite understand: you are lucky to find a state-owned enterprise to recognize this certificate. Don't blame it for being worthless if you don't recognize it. Because you used it in the wrong place. IWE is a European standard (mainly German standard) and CWI is an American standard. It can be said that the standard has two functions in the final analysis: 1. For us individuals and enterprises, if we don't abide by the rules, we can't become Fiona Fang: pressure vessel manufacturing can't do whatever we want, because explosion will kill people, and you have to abide by a rule, which is the standard; 2. For a country or a unified economy (such as the European Union), standards are trade barriers: whoever has the right to speak standards will stand at the top of the industrial chain: you have to pay patent fees, certification fees, testing fees, etc. Which standard is not? How much do TUV, ASME, PED and 3C in China get from others every year? Isn't the standard system established to protect yourself from being led by others? Why should I recognize my competitors' things? It's certainly not easy for you to take IWE to American enterprises to find a job (of course, it's not absolute, the same below), but don't you think Siemens, Alstom, Tetra Pak and ABB all recognize it? Two years ago, I saw a data that 53 people in the United States obtained IWE certification, which was not as large as the number of people in a class when I was studying. Isn't the European safety equipment directive PED born to fight against American ASME? Does it make any difference if you take CWI to Europe to find a job? But don't American companies like Procter & Gamble, Hartford and Caterpillar all want it? If you pass the exam, you should use her in the right place.
Hope to adopt