智能微型电热辊道窑设计开发

通过智能微型电热辊道窑的研发,介绍该窑设计、施工主要关键技术,进而说明其低蓄热、烧成热效高、温差小、控制稳定简便、烧成周期灵活可调等特点,可满足多品种、小批量功能陶瓷的生产方式。     

STOKER APPLICATION TO THE CAR TUNNEL KILN1

Presents arguments for use of mechanical stoker on continuous kilns. Describes first practical application of mechanical stoker to the car tunnel kiln used for ceramics and gives results.     

THE POSSIBILITIES OF THE TUNNEL KILN FOR SEWER PIPE1

The questions of whether enough sewer pipe could be set on cars and safely pushed through a tunnel kiln to make this type of kiln practicable for firing sewer pipe, and whether salt glazing would be practicable in one are discussed. The modifications necessary in a Richardson compartment tunnel kiln to make it practicable for this purpose are enumerated and explained.     

KILN CONSTRUCTION1

Seventeen periodic kilns were studied for construction and design details, operation, and results. Eleven were round and six were rectangular. Alterations were made in grate area proportions, floor openings, flue design, and dimensions; the firing conditions and quality of ware obtained with each were recorded. The data obtained show effect on heat distribution and on time and fuel expenditures. Detail designs of flues are shown and the data are in tables and graphs. Detail specification and bill of materials are given for the 30-foot round kiln which was found to give best results in ware and costs.     

THE HARROP TUNNEL KILN

The successful application of the car tunnel kiln to the firing of electrical porcelains is described. This kiln is 321 feet long, 54 1/2 inches wide inside, and has a placing height of approximately 60 inches. The ware is placed in saggers as formerly. Ware has been fired through this kiln in 48 hours-total time for heating up, soaking, and cooling. The kiln operates at cones 10, 11, and 12, depending upon the ware being fired. Natural gas is used as fuel and is supplied to the kiln through Maxon Premix burners. Auxiliary fuel oil equipment is also installed.     

THE ELECTRIC BRASS FURNACE REFRACTORY SITUATION1

The three prominent types of electric brass furnaces are described, and the conditions which they impose on the refractories are outlined. The limitations which the properties of refractories place on the applicability of the various furnaces are considered and an attempt made to point out lines along which development and improvement are most likely to take place.     

THE DIRECT FIRED CAR TUNNEL KILN ON ROOFING TILE1

The pioneer car tunnel kiln for the firing of roofing tile is described. The kiln is 324 feet, 11 1/2 inches long and holds 52 cars each of which carries 2.3 tons of fired ware. Ten furnaces equipped with Maxon Premix combination oil and gas burners arc used. A schedule of one car every 65 minutes is in operation, 56 hours and 20 minutes being required for a trip through the kiln. The ware reaches a maximum temperature of 1820°F and is drawn from the kiln at 400°F. Additional cooling is accomplished with a portable fan. The kiln has a capacity equal to ten 30-foot round down-draft kilns and shows a fuel saving over the latter of 64.2%. A total of 15 h. p. is required. A saving in setting and drawing labor of 29.2% and 45.8% respectively is effected.     

汝窑的辉煌

汝窑瓷器是我国宋代“汝、官、哥、定、钧”五大名瓷之首,历史上有“汝窑为魁”之说（宋·叶口《坦斋笔衡》）。汝瓷把青瓷之美推至极致。在青色釉方面,铁的还原以至完成阶段,在我国陶瓷发展史上是一个划时代的里程碑（《中国陶瓷史》文物出版社）;在陶瓷造型艺术方面,她不仅将汉唐以来,中国写意手法推向新的高度,而且开启了中国写实造型艺术的先河,是中国陶瓷造型艺术“形神兼备”的典范之做。     

汝窑的辉煌

汝窑瓷器是我国宋代“汝、官、哥、定、钧”五大名瓷之首,历史上有“汝窑为魁”之说（宋·叶口《坦斋笔衡》）。汝瓷把青瓷之美推至极致。在青色釉方面,铁的还原以至完成阶段,在我国陶瓷发展史上是一个划时代的里程碑（《中国陶瓷史》文物出版社）;在陶瓷造型艺术方面,她不仅将汉唐以来,中国写意手法推向新的高度,而且开启了中国写实造型艺术的先河,是中国陶瓷造型艺术“形神兼备”的典范之做。     

A STUDY OF THE OPERATION OF A DRESSLER TUNNEL KILN1

Before installing a Dressler tunnel kiln, Norton Company made a study of an existing kiln. At Steubenville, Ohio, the kiln was found to be working well; repairs were small, economy in fuel, labor and firing time had resulted. The heat distribution was found to be variable but subject to control. The amount of rejected ware was very small and in no case could it be charged definitely to the kiln.     

AN UNUSUAL KILN SCUM1

A heavy, white, fuzzy coating on brick developed in the firing. The coating consisted entirely of silica, produced from the reduction of silica and vaporized as silicon and reoxidized.     

A LABORATORY MUFFLE KILN1

The general construction of a gas-fired muffle kiln is discussed and its chief advantage is given in that it has a single piece, easily replaceable muffle with high heat conductivity.     

堇青石质窑具的配方优化

本文介绍了窑具的生产工艺过程,并利用正交实验对堇青石质窑具的配方进行了优化,得出了比较合理的配方。     

SERVICING OF KILN CARS1

A lubricant for car bearings was desired which would furnish maximum protection for the bearings and decrease power consumption as much as possible. The maximum operating temperatures reached by the bearings were ascertained and a suitable lubricant compounded, effecting the desired results. A plan for using the lubricant is presented.