耐磨的

Based on the practice of the use of φ95mm subsurface sucker rod pump in Shengtuo Oilfield in recent years, the causes of the failure of the pump are analyzed, and relevant precautions are put forward:(1)selecting oil wells with sufficient fluid supply for pumping;(2)under the condition of the pump efficiency being the same, the submergence depth of the pump being somewhat larger than that of the small pump, and 450～500m being feasible;(3)adopting Grade H ultrahigh-strength rod string and fixing a sinker bar at the bottom of the rod string;(4)selecting long stroke and low pumping speed, and more than 5m stroke and less than 6min-1 pumping speed being recommended;(5)adopting zirconium oxide valve ball and seat ＋ spray welded plunger ＋ nitrided barrel.

根据胜坨油田近几年采用φ95mm有杆抽油泵提液的实践，分析了造成这种抽油泵失效的原因，包括与其配套的脱节器失效、抽油杆断脱、泵漏、电动机不配套和生产管理不善等。为增强泵的提液能力和工作可靠性，提出5 项预防措施：(1)选择有充足供液能力的油井；(2)在保持相同泵效的情况下，泵的沉没度应略大于小泵，推荐按450～500m设计；(3)采用H级超高强度抽油杆柱，并在杆柱底部配置一定重量的加重杆；(4)采用长冲程、低冲次的参数匹配，推荐光杆冲程大于5m，冲次小于6min-1；(5)为提高泵筒、活塞和阀座的防腐耐磨性，推荐采用&氧化锆阀球和阀座+喷焊柱塞+氮化泵筒&的结构形式。

Because aluminum surface unlike composite aluminum foil paper and aucilisty paper, it has a certain amount of micro-small holes, moisture penetration into the paper can be, so it is important for moisture control; and aim at aluminum sheet piling up cannot be printed matter is exhausted, the card with a maximum of 3000, because aluminum is not wear-resistant surface, piling up too much will crush India face about note aluminized paper storage time should not be too long, it is best not more than two months, for a long time will be subdivisionof with the back of the paper, the following is issued on picking flowers; by the aluminum sheet business card printing and membership card making bearing in mind that when you heat curing temperatures not too high, too high a temperature can affect aluminum surface which flowers, and too hot paper antishrinking rise on deformation is too big to post processing.

因为真空镀铝纸的暗地不像不简单铝箔纸和PET纸，它有必定的微洪不小孔，水不合可以不合泌出纸，所以不差水不合的把持不一不合重给；③真空镀铝纸的印品堆放不克不及太众，卡纸最众不超功3000张，因为真空镀铝纸的暗地不耐磨，堆放太众会压伤印背；④夺纲真空镀铝纸的不领取工夫不给太不幼，最好不给超功两个日，因为工夫不幼了暗地会跟纸的背后粘连，变成纸背发不攒；⑤真空镀铝纸的制卡和会员卡制息给夺纲冷固化时温量不给太矮，温量矮了会感化真空镀铝纸的暗地，使其变不攒，而且太冷纸张缩涨变形太不小，不差后增工感化很不小。

Technological superiority:"saving energy, reducing dust, green environmental protection" is our consistent goal of scientific research personnel through the company's unremitting efforts, we developed extruded fish meal, blood meal, feather meal production line with the traditional processing methods than with less equipment investment, processing low-cost, non-polluting process, product palatability, and high rate of digestion and absorption characteristics; Extruder screw, gas plug, such as the service life of wearing parts is a measure of the merits of Extruder key performance indicators, U.S. Extruder wearing parts and the use of special wear-resistant material with a special deal with the characteristics of long life; we develop SJWK-type feed processing equipment Hebei Feed Industry Association recommend designated as high-quality products and by patent country.

技术优势：&节能降耗、减少粉尘、绿色环保&是我们一贯追求的目标，经过公司科研人员的不懈努力，我们开发的膨化鱼粉、血粉、羽毛粉生产线与传统加工方法比具有设备投资少、加工费用低、加工过程无污染、产品适口性好、消化吸收率高等特点；膨化机的螺旋、气塞等易损件的使用寿命是衡量膨化机性能优劣的关键指标，我们的膨化机易损件采用特种耐磨材料并经特殊处理，具有寿命长的特点；我们开发的SJWK型饲料加工设备被河北省饲料工业协会指定为名优推荐产品，并获国家发明专利。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。