Judge dark-red enameled pottery sintering method

Judge dark-red enameled pottery sintering method

How to determine the sintering dark-red enameled pottery? The expert points out, the sintering, judge dark-red enameled pottery from shallow and deep, roughly into four kinds of methods, is view color, listening, debate inside and outside, check complex.
A, view color
Clay is less, the higher the sintering temperature. But some of purple material reaches a certain high temperature occurs after further chemical reaction, appear coking phenomenon, produce pin holes and bubble. From low melting things begin to melt to appear bubble, stythe eye of a needle, coking phenomenon the critical temperature range, is called sintering (temperature) range. With the increase of firing temperature, low melting things begin to melt, and at the same time, the amount and nature of the metal oxide also is in produce change. As a powder metalresult of the metal oxide few quantity and type is dark-red enameled pottery color material, so with the change in temperature, dark-red enameled pottery color effect will also be different, will not only from shallow darker, and some pug fever product color will be different. Those who need a specification is, how many kinds of metal oxide, apart from the firing temperature on outside, still and firing atmosphere related. When burning oxygen and carbon monoxide gas concentration is different, the formation of metal oxide will be different, thus decided to burn product color.

Second, listening
This is the most common method. Listen to the sound, 1, listen to the voice of grinding, 2, listen to the voice of stroke. Grinding, even with a pot cover mouth on lap type grinding; Stroke, is left hand should be under pitcher body mold, the right hand carry pot son (cover button), with the top of the lid tapping pot Pan (put). Listen to the sound, judgment is the body's density, also is in the body how much porosity. Purple is mainly based on quartz content and clay content and clay in metal oxide content type and many little to classification. Does not contain the quartz, or quartz content is very few, mud, otherwise it is sand. Mud fe content is more red clay, iron content rarely (or not) is white mud. In sand, clay, clay less little iron oxide (and iron ion), and titanium oxide more is this mountain lu (in fact for sand, similarly hereinafter). Iron content is less period of mud (sand). Quartz, clay matching moderate, clay of the iron content is less, is zhu mud (sand), iron content is more purple clay (sand).

Third, both inside and outside to contend
Dark-red enameled pottery color except decided to pug species outside, still and firing technology closely related. In oxidizing atmosphere, violet arenaceous mud of iron formation is rufous iron oxide red, in reducing atmosphere formation is sintered metalyoung black oxidation and iron. Purple clay, red mud (z mud) made dark-red enameled pottery color, it is by the relative amount of the decision. Firing atmosphere is refers to the combustion environment oxygen, carbon monoxide gas concentration level. In the same firing temperature (of course must be sintering temperature above), oxygen is more, is oxidation atmosphere; Carbon monoxide much gas, is reducing atmosphere. Obviously, the same conditions, always body surface oxygen concentration is high, the body internal carbon monoxide gas concentration is high, then, sintering dark-red enameled pottery of the surface is red, purple, but section but color is deeper, even a young black. Then, to observe dark-red enameled pottery pot body color difference in size, will become judgment dark-red enameled pottery sintering degree of a a universally, which will never change at all times and in all over the standard.

Zoomlion wheel crane structure welding comprehensive advance robot era

Zoomlion wheel crane structure welding comprehensive advance robot era

With the engineering crane company QuanTang industrial park structure workshop 11 table welding robot installation complete and formal delivered for use, wheel crane jib, turntable, frame and leg four structure welding process fully into the robot era.

Robot welding process introduction, improve the quality of the weld, the weld seam andry transformers inspection by the traditional manual welding qualified rate of 84% up to 99%. The use of welding robot, still can promote wheel crane structure welding efficiency, especially in the welding seam displays the great advantage. To fifty v / 55 v truck crane frame posterior segment in welding as an example, the manual welding time need 5.5 hours/Taiwan / 2 people, and robot welding just 4.5 hours/Taiwan / 2 machine, efficiency can be increased by 18.2% year-on-year. And the traditional manual welding need workers drilling to the internal shi welding, smoke, dust, strong light, high temperature of the extreme environment, serious harm the operator's physical health, and use robot welding are completely avoid these problems.

High frequency welding machine use rise and convenient safe, but we always carry on the maintenance, enhance its service life, high frequency welding machine must be installed on the good earth end, because of the damp, dust is very sensitive, so should be placed in the appropriate work space. The valves can produce high fever, so do not put in will produce heat machine side, nor device in solar direct exposurestud welding machine to the place, because of the above reasons can affect the function of vacuum cooling.

The difficulty of welding in where? One is the material of high strength, is a plank is thick. The material strength and general to level 390 to more than 800. The high strength steel welding problem, the more so we welding process needs high technology and welding process requirement, also need to experience. Thick plate since mm to 180 mm, very thick, the general welding technology to so thick material may appear a lot of problems. So in ocean engineering steel structure whether offshore loading leg, post. There is a low temperature Stud welding systemtoughness, submarine temperature is very high, this kind of steel structure after welding in low temperature toughness demand is very high, this aspect in general if do well this process would be brittle fracture occurred, if oil field happened this kind of question is that a lot of accidents, are not allowed to appear. In addition, the weldability, welding demand is higher, in addition to its lamellar tearing, fatigue strength have relatively high request, this is the difficulty of welding.

Spark machine tool electro discharge machining concept and origin

Spark machine tool electro discharge machining concept and origin

The Soviet union scholars raza even families couple research invented electric spark machining, and then with the pulse power supply and control system improvement, and rapidly. First use of pulse power supply is a simple resistance capacitance loop. At the beginning of s, improvement for resistance, inductance and capacitance loop. At the same time, but also USES the pulse generator and so on the long pulse power, removal in improving efficiency, tool electrode relative losses.

Then there was high power tube, thyratron and high frequency pulse power, drill edmin the same surface roughness under the condition of productivity can be improved. In the middle of the s, the emergence of a transistor and thyristor pulse power supply, improve the energy utilization efficiency and reduce the tool electrode loss, and enlarge the rough machining adjustable range.

For electric spark machining, the tool electrode and workpiece respectively after pulse power poles, and dip work fluid, or will work fluid filling the discharge gap. Through the gap to be automatic control system control tool electrode to the workpiece feed, when two interelectrode gap to a certain distance, two electrode applied pulse voltage will work fluid breakdown, produce the spark discharge.

Discharge of the micro channel instantaneous focus a lot of heat, the temperature can be as high as ten thousand degrees Celsius above, pressure also has a sharp change, so as to make it work surface local trace metal material immediately melting, gasification, and explosive to splash into a working fluid, rapid condensation, forming a solid metal particles, was working fluid away. Then in the workpiece surface will leave a small pit trace, discharge short rest, two electrodes operating fluid recovery insulation condition.

Then, a pulse voltage and in two electrode relatively close to another point place breakdown, produce the spark discharge, and repeat the process. So, although each pulse discharge amount of metal removal in few, but because there are thousands of times per second pulse discharge process, you can removal in more metal, has certain productivity.

With the development of industrial production and the progress of science and technology, has the high melting point, high hardness, high strength, high brittleness, high viscosity and high purity and performance of new materials appear constantly. With all kinds of complicated structure and special process requirements of the workpiece is more and more, this makes the traditional machining method can't processing or difficult to processing. Therefore, people in addition to further develop and perfect mechanical processing method, but also to seek for the new processing method. Electrical discharge machining method can adapt to the needs of the development of production, and in the application of shows a lot of outstanding performance, therefore, obtained the rapid development and wide application.

Single cylinder pressure shock absorber

Single cylinder pressure shock absorber

Just as its name implies is to single tube (tube) body design, internal into high pressure nitrogen stored in the body of the bottom of chamber to free piston separation of oil and gas. This type of shock absorber react fast, simple structure, thermal easy and convenient maintenance.

Single tube (tube) type shock absorber in the back stretch long stroke and compression stroke all rely on piston body produce dampingbrake racing, and the gas chamber in the lower body, in order to free piston separation oil and steam body (oil, gas separated), in the elongation stroke, the piston chamber pressure, oil by the body to the compression chamber is on the contrary, seal in gas indoor nitrogen in shortened, become a negative pressure on the piston chamber of high enough value.

In the oil is not full flow to the chamber, the chamber offset the uneven pressure type, therefore the shock will have good Q degree performance, in addition the air chamber and hydraulic oil chamber is completely separated, in under the condition of high pressure, won't have a hole, so the phenomenon in the use of harsh circumstances, still can produce a high level of stability, another oil seal for actuator force on the piston to directly in the chamber pressure, require a high degree of pressure and must pay special attention to the need for its machining high-precision delicate degree, the general shock absorber manufacturers to produce durability and high stability of single tube (tube) type shock absorber.

And single cylinder on the contrary, the compound drum manufacturing cost is low, to production, and the sealed gas belongs to low pressure gas, and high pressure of single cylinder, piston actuator compared when feeling more soft, this makes handling not as single tube (tube) type have sensitive, this type of shock chamber into the nitrogen not as single cylinder is so high, the bottom of the tube open connected to the piston chamber and the gas chamber even path.

Piston internal mechanism basically and single type the same, the difference is that in the shortened, the chamber part of the oil into the chamber, the connected path be resistance, inner guide core upside sets check valve in the elongation trip, from bar and top table between leakage oil back to the gas chamber, in shortened they were not suction gas indoor gas, its disadvantages for shock absorber in the elongation stroke, the piston down chamber from the oil chamber suction pressure value of the shock absorber oil easy generation vortex vacuum, and dissolve in oil have a bubble.

The system is actually based on modified shock absorber, are divided into 2 sets of hydraulic line. 2 sets of systems are the four respectively the shock "tie" up, its working principle is four this is independent of the shock absorber become a whole.

High temperature bearing break international monopoly

High temperature bearing break international monopoly

The international first-class high-temperature precision slide bearing, its core technology has been Germany, Japan and other minority national monopoly. Now, GuanXian Kennedy GuanTunXiang Kennedy GuanTunCun farmers XuJi envy through independent research and development to conquer the technical difficulties, and the production of high temperature resistant precision bearing pin to Germany.

Since the 1980 s, XuJi envy do stripping bearing small business, and then in Shanghai registered company, engaged in bearing trade. As business bigger and bigger, have a kind of phenomenon let XuJi envy RuGengZaiHou: domestic product homogeneity is serious, the majority is ZhongDiDuan products, low profit; But foreign brands are high-end bearing, its profit is the domestic bearing several times even a few times. The reason, is the enterprise do not have the high precision bearing core technology.

High temperature bearing localization, let China enterprise benefit. A Beijing China's largest special film equipment production enterprise, the original to Germany purchasing bearing, each batch are through the German government approval, the cost is high, the formalities numerous. Now, they get rid of the passive situation at all, the XuJi envy products, procurement cost saving 50% the left and right sides.

In order to adapt to the growing sales, 2010, in his hometown XuJi envy invest in the construction of the Plastic bearingproduction base, to construct the research in big cities, play brand, in the home make production, benefit the native place of management pattern.

Bearing is one of the core parts of wind power equipment, working conditions and long service life, high reliability requirements, make use of wind power bearing manufacturing high technology complexity, become wind power equipment localization is the most difficult one of the key points, also become influence the development of wind power in China soft rib. Yanshan university assumed this subject research after the success, our country will produce high performance, long life of more than 5 mw wind power generator with large yaw bearing, variable propeller bearing, wind leaf spindle bearing steel ability. At the same time, the research of the special steel enterprise technology progress, the product quality improvement is of important significance in China, will change the high-power wind power bearing product development lags behind, the overall situation of special steel products to promote the international competitiveness.

鉚釘機-重慶地區粉末冶金行業局勢向好

鉚釘機-重慶地區粉末冶金行業局勢向好
重慶當地諸多粉末冶金制品行業需求鉚釘機真空包裝機向好，重慶隸屬我國粉末冶金制品主要産區之一，當地摩托車、汽車、機電等行業近期發展趨勢整體向好。當地粉末冶金制品企業涉及下遊涉及領域除上述三大主要行業等，還包括部分磁性材料、機械設備等下遊産業。

“最近和一些客戶交流按需出版、按需印刷的商業模式和贏利點，跟幾年前相比，現在傳統出版印刷輸送機業 態已經將按需出版提升到了一定高度。按需印刷是實現按需出版理念的技術手段和保證，切中出版界減少庫存、增加贏利要點，按需印刷能使傳統業態獲得不錯的回 饋。”奧西中國連續紙數字打印生産系統銷售經理方大傑告訴，目前按需出版、按需印刷的話題在業界反響熱烈，客戶以出版社居多，也有書刊印刷企業。

在國內出版印刷行業，按需印刷的先行者鳳凰出版傳媒股份有磁力棒限副黎雪向表示，傳統印刷是在出版和發行的中間環節，中間環節的至關印刷廠重要性在于技術的引領性。從這點來講，印刷人不僅要關注印刷，還要關注傳統産業真空包鉚釘機裝機的技術進步。而令他歎息的是，傳統業態對新技術應用不是很敏感。

四個研究課題全部通過驗收。粉末冶金産業是我市最具特色和優勢的高新技術産業之一。這次國家科技支撐計劃結題驗收及成果鑒定，是我市粉末冶金産業發展史上的一個裏程碑，標志著我市粉末冶金關鍵技術和産業化水平走在了全國的前列。

高性能鋼鐵粉末冶金材料關鍵技術研究與應用項目課題驗收暨成果鑒定會。省科技廳高新處調研員張茂森和國內新材料領域的11位高層專印刷廠家對萊鋼粉末等6家單位承建的四個研磁力棒究課題進行結題驗收和成果鑒定。 博主好站推薦： 堅固耐用工程塑膠加工 工程塑膠特性及應用 工程塑膠POM先進材料 工程塑膠射出 很好的婚紗攝影 婚紗照地點 粉碎機好用 最好的工業螢幕 開放式螢幕 婚紗照風格 台中婚紗公司更是全方位的服務 機械買賣 滿意的日月潭飯店

安養中心-老年照護産業發展迫在眉睫

安養中心-老年照護産業發展迫在眉睫
重慶召開的第七屆中國老年産業博覽安養中安養中心心會2012年老年産業發展論壇上，衆多與會專家擔憂，隨著我國人口老齡化程度的不斷加深，急劇增呼吸照護長的社會養老需求與老齡事業發展的矛盾日益突出。中國老年長期照護産業的發展成爲共同關注的焦點話題。

目前，我國人口老齡化發展進程不斷加快。據悉，2011年全國老年人口總量1。85億，2014年將突破2億，2026年或將突破3億。我國失能老年人口 的規模將持續增長，2011年全國約有1695萬，2030年我國失能老人約爲3322萬。2010年城市空巢家庭約爲57%安養中心，農村空巢家庭也近50%。

當孩子出現鼻塞症狀時，父母首先應設法弄清安養中心楚鼻塞的原 因，不要急于濫用藥物。當存在下列情呼吸照護況時，鼻塞症狀會較明顯，甚至影響寶寶吃奶和睡眠。

　　因此，建立長期照護保險制度是化解老年失能風險的最重要制度安排。人在老年階段面臨收入風險、疾病風險和失能風險三個基本問題。在現代社會，前兩個風險要靠養老保障制度和老年醫療保障制度來化解，而失能風險必須依靠建立老年長期照護保險制度來化勞工體檢解。

　　“從現代社會公共服務角度看，建立老年長期照護服務體系是老齡社會公共服務的一個重大問題。在老齡社會條件下，將要求重塑國家公共服務體系的基本格局，需要政府、市場和社會三大部門作出重大調整。”趙寶華說，“建立老年長期照護制度和服務體系，是呼吸照護 提高老年人生活和生命質量的制度保障，是推動投資和消費，拉動金融、保險、護理等現代服務業，促進經濟持勞工體檢續增長的新生推動力。” 博主好站推薦： 堅固耐用工程塑膠加工 工程塑膠特性及應用 工程塑膠POM先進材料 工程塑膠射出 很好的婚紗攝影 婚紗照地點 粉碎機好用 最好的工業螢幕 開放式螢幕 婚紗照風格 台中婚紗公司更是全方位的服務 機械買賣 滿意的日月潭飯店