| 单词 | crepe rubber |
| 例句 | The only other defect of crepe rubber which has any bearing on its use in manufacture is mould. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Like the tunnels it was floored with crepe rubber or some similar substance which gave out no sound of footsteps, yet was firm underfoot. Astounding Stories, August, 1931 It is assumed that all estates, not only in the preparation of sheet rubber, but also in the making of crepe rubber, always employ the system of standardising latex in order to obtain uniformity. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z This darkening of crepe rubber may be attributed to a slow process of oxidation, which continues until the rubber is dry. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Surface Moulds or Mildews on Crepe Rubber.—Defects of this nature are most uncommon in the higher grades of crepe rubber, but cases of affection in the lower grades are not rare. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z It is possible that crepe rubber would give higher figures if it could be prepared in the form of a compact ring, as used for tests on vulcanised rubber. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Under ordinary conditions, thin crepe rubber, as it leaves the finishing machines, has what may be termed “deckled” edges. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Should this latex be poured into ordinary latex without thorough mixing, it is sometimes found that, when the crepe rubber is dry, there are distinct yellow streaks. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z The effect may be proved easily and perceptibly by fastening together several pieces of crepe rubber by means of a brass “paper-fastener.” The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z This condition may be created inadvertently in the course of factory practice, if piles of crepe rubber are allowed to remain for any appreciable period before hanging to dry. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z For this reason, crepe rubber with coloured spots may give rise to trouble in the factory. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z To those accustomed only to the preparation of crepe rubber, where coagulation can be effected in large batches, the preparation of sheet rubber always seems to demand much more labour. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z To Prevent Oxidation.—As a rule the scraps are picked over, and heavily oxidised pieces are sorted out; otherwise the crepe rubber prepared exhibits black streaks. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z In the preparation of crepe rubber heavy machinery is necessary, and ample engine-power must be available. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z It will be recognised, of course, that undiluted latex may only be used in any case for the preparation of crepe rubber; or in some exceptional case, such as the special preparation of “slab” rubber. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z The enumeration of the possible causes of mildews on crepe rubber is sufficient to indicate the necessary precautions to be taken, and the discussion will not be extended further. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Where crepe rubber is to be made it may be permissible to employ a solution stronger than 1 per cent., but it is not advised. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Furthermore, while in the preliminary treatment for crepe rubber, the formation of enclosed bubbles and surface froth is immaterial. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z For reasons which will be explained more fully in the chapter dealing with the defects of crepe rubber, the practice of preparing thick crepes direct from the coagulum is now very uncommon. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z As to the particular form of the lower grade crepe rubber, one may apply the remarks made under the section dealing with the best grades. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z This point has already been touched upon in a preceding paragraph dealing with the defect of “green streaks” in pale crepe rubber. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z The care which has to be exercised in preparing pale crepe rubber is very great in comparison with what is demanded by sheet rubber. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Colombo Commercial Company’s Drier.—The drier of the Colombo Commercial Company consists in principle of a number of small chambers or units in which crepe rubber is placed, and through which hot air is passed. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Under this scheme wooden cases are discarded, the packing material being composed of scrap-grade crepe rubber which, it is claimed, could be put to use by the manufacturer. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z It should only be necessary to point out that essentially block rubber is merely pressed crepe rubber. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z The method is applicable to both sheet and crepe rubber. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z With a view to determining to what degree the drying of crepe rubber was hastened by the extent to which the rubber was rolled, experiments were made. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Working with wet crepe rubber, the writer found that, to all external appearances, there was no effect upon the rubber when it was allowed to sun-dry for four or five hours. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z On the whole, therefore, the presence of sulphate in crepe rubber is adventitious, and properly washed crepe prepared with moderate quantities of bisulphite may be taken as free from any residual quantities. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Some light is thus shed upon a subject which has puzzled both shippers and receivers of crepe rubber. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z In any case, the figures for vulcanised rubber are much in excess of those for raw crepe rubber. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Some time ago the question of installing artificial driers received the serious attention of a number of estates in this country, chiefly on account of the incidence of fungoid and bacterial diseases in crepe rubber. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Block Rubber.—Few estates now prepare block rubber, which is essentially crepe rubber pressed into blocks. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z In the more recent modification, the smoke and hot air which leave the Chula drier pass through a large room in which may be hung either sheet or crepe rubber. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z In previous publications a diminution in the number of grades of crepe rubber has been advocated, and it is gratifying to find that in many cases the amending grades suggested have been improved upon. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Sheet rubber gives results in some ways inferior to compact crepe rubber when subjected to physical tests. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Unless special precautions were observed in the processes of coagulation and preparation, it was not proved that the exclusion of light prevented or lessened the natural oxidation of crepe rubber. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z There have been several schemes put forward for winding crepe rubber on spindles so as to form a cylindrical package complete in itself. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Houses for drying crepe rubber may be of one floor, two floors, or even three floors. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z Should this be allowed to persist, as would happen in the case of a breakdown of engine or machines, it usually results in the final crepe rubber becoming tacky when approaching dryness. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z It is transferred to the crepe rubber in the manner indicated above. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z It will be plain, therefore, that the limits of centralisation of factory work are much narrower for the preparation of sheet rubber than is the case when crepe rubber is to be made. The Preparation of Plantation Rubber 2011-03-09T03:00:40.870Z |
| 随便看 |
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。