This forms a protein coated sand core for use in casting molten metals.
此形成的一种涂覆蛋白质砂芯用于铸造熔融金属。
There is core head for fixing the sand core, and no stripping mechanism but direct manual core fetching.
梯型芯头稳固砂芯，无顶芯机构，采用人工直接取芯。
Vice hoist for the replacement of the drill pipe or other tools and put sand core tube can also be used for flushing operations.
钻机配有一个主卷扬机、一个副卷扬机。主卷扬机用于升降钻具、下井管等。副卷扬机用于更换钻杆或其他取芯工具及提砂筒，也可用于洗井作业。
In core making with cold core box, the solvent content in the binding material has a greater influence on the sand core strength.
采用冷芯盒法制芯时，粘结剂中的溶剂含量对砂芯强度有较大影响。
Therefor, it is greatly significant to clarify the mechanism of sand blowing process so as to control the production of sand core.
由于砂芯通常采用射芯的方法来制造，因此，了解射砂过程的机理，并且在此基础上对射砂过程加以控制，就显得至关重要。
The relationship between calcium stearate and sand core as well as casting quality of cylinder head of diesel engine for example …
同时，以柴油机缸盖砂芯和铸件为例，分析了硬脂酸钙与砂芯和铸件品质的关系。
The properties of the materials used for making models of sodium silicate bonded sand core curing by microwave energy are suggested.
结果表明，塑料模具和陶瓷模具都可用于水玻璃砂芯的微波固化。
This paper the cause of the scab of the inside surface of cylinder block on condition that the resin sand cores are made in cold core box.
本文分析了冷芯盒村脂砂芯条件下缸体铸件内腔结疤的原因。
Sand core for the blade was made by hand drawing the pattern from core box. The way of core making is feasible on a medium scale production.
采用线切割的方法制作涡轮叶片砂芯芯盒，用该芯盒手工起模制作叶片砂芯。
The relationship between calcium stearate and sand core as well as casting quality of cylinder head of diesel engine for example is analyzed.
同时，以柴油机缸盖砂芯和铸件为例，分析了硬脂酸钙与砂芯和铸件品质的关系。
Compared with the prior art, the side frame whole sand core hanger has simple structure and convenient use for the side frame whole sand core.
同现有技术相比，本实用新型结构简单，对于侧架整体砂芯，使用方便。
Safety system core technology: self hardening sand core equipment, hot core and core machine, coated sand core machine, cold core and core machine.
安制芯工艺分：自硬砂制芯设备、热芯合制芯机、覆膜砂制芯机、冷芯合制芯机。
Quartz sand core, which is made in accordance with a special core making technique of casting, is one of common materials used in Investment casting.
石英砂型芯是采用熔模精密铸造的常用材料，通过特定的制芯工艺制成的一种铸造用型芯。
Resin sand mould was adopted with precoated sand core. The upper and bottom half boxes used horizontal pouring design with box middle line as parting face.
采用树脂砂砂型、覆膜砂砂芯，上、下两个箱体均采用平做平浇的工艺方案，并选取箱体中线为分型面。
Veining defects have been effectively prevented and eliminated by improvement on gating system, especially by special additive to core sand and sinter coating on surface of sand core.
通过改进浇注系统，特别是采取在进、排气道芯砂中添加特殊抗脉纹添加剂及在砂芯表面涂刷烧结型涂料等工艺，有效地预防和消除了脉纹缺陷。
This paper introduces the craft characteristics of casting the shell of the gearbox, including the manufacturing of the resin moulding, the application of the hard sand core and so on.
针对变速箱壳体毛坯铸造的工艺特点，介绍了其树脂模具的制造、树脂自硬砂砂芯应用等关键环节的技巧和做法。
The design and construction of the sloping- faced north leading dike with bagged- sand core for the 1st phase of the Yangtze Estuary deepwater channel regulation project are introduced.
介绍长江口深水航道治理一期工程北导堤袋装砂堤心斜坡堤的设计与施工。
This paper introduces the method of making sand core, explains the influence of the head design of sand core, assembly of sand core and other factors on the dimension precision of casting.
介绍了制芯方法，阐述了芯头设计、砂芯的组装及其它因素对铸件尺寸精度的影响。
In the mix of sand or sand core casting equipment, sand mixing machine generally has the following functions: the old sand, new sand, sand bonding agent and auxiliary materials mixed evenly.
用在混制型砂或芯砂的铸造设备，混砂机一般具有下列功能：将旧砂﹑新砂﹑型砂黏结剂和辅料混合均匀。
Research has believed that veining in admission and exhaust passage of diesel engine cylinder head may mainly be caused by crack of sand core occurring in high temperature phase change expansion.
研究认为，柴油机气缸盖进、排气道脉纹的产生主要是由硅砂高温发生相变膨胀导致砂芯开裂引起的。
If a hollow casting is to be made the pattern will include extension pieces so that Spaces to accept the sand core are molded into the sand. These additional Spaces in the mold are termed core prints.
如果铸造空心铸件时模型上包含伸长杆便于在砂中放置砂芯的空间称为型芯座。
The sand core structure provided by the utility model can solve the difficult technique problems of core shooting and chocking in casting simply and effectively, and improve the yield of the castings.
本实用新型所提出的砂芯结构，可简单而非常有效的解决铸造生产中射芯呛火的技术难题，提高铸件的成品率。
Cultured pearls don’t have at their core a grain of sand, but instead arelittle plastic or glass beads or something that pearl farmers stick into theoyster for a year or so.
对于人工养殖的珍珠而言，它们的核心并不是沙粒，而是像小塑料珠或小玻璃珠之类的物体。珍珠养殖者把这些小东西塞到牡蛎中，然后等上一年左右的时间。
The resin sand with high collapsibility is chosen to make the core of the near closed hollow ring on the basis of many technological experimentations through analysis of structure and process.
通过结构分析和工艺分析，在大量工艺试验的基础上，选用高溃散性树脂砂制作型芯，并成功地研制出大型薄壁复杂结构的封闭型腔铸件。
He has prepared a special core sand and solved the problem of cleaning blind holes successfully.
配制了专用芯砂，成功地解决了异型盲孔的清砂问题。
Companies are integrated enterprises, the main core for the building or real estate, the provision of gravel, sand, brick machine, quarry and transport.
公司属综合性企业，为主要核心建筑或房地产，提供砂石、河沙、机砖、石矿及运输。
The effect of capillary pressure and water saturation on sand production has been researched through the core flow test in this paper.
通过室内岩心流动试验，研究了毛管力、含水饱和度对岩石出砂规律的影响。
The paper analyzes the design optimization of core box using coated sand in Z8040 hot box core shoot machine to make the cylinder block cores and sprue cores.
分析Z8040射芯机用覆膜砂热芯盒法制作气缸体前后端面芯及其浇口砂芯优化设计方案。
It is a core of fme reservoir description. Therefore, single sand body study is the most important and basic study in development geology, with significant meaning.
这是精细油藏描述核心问题，因此单砂体研究是开发地质研究中最重要最基础性研究，有着非常重大意义。
It is a core of fme reservoir description. Therefore, single sand body study is the most important and basic study in development geology, with significant meaning.
这是精细油藏描述核心问题，因此单砂体研究是开发地质研究中最重要最基础性研究，有着非常重大意义。
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