Technical information-Dalian Dafa Casting Co., Ltd_the2page

Site Search Dalian marine valves marine inspection castings marine castings

请输入您要搜索的关键词...

热门产品搜索

Dalian marine valves marine inspection castings marine castings

current position： Home > News Center > Technical information

How to solve the internal or external leakage of marine shut-off valves during use

2023-02-13 16:24:39

Regarding the flange leakage in marine shut-off valves, Dalian marine valve manufacturers suggest tightening the nut of the middle flange. If it has not been repaired yet, it is necessary to open it t...

More +
What should be noted when using Dalian marine valves and butterfly valves

2023-01-13 15:01:01

The flange standard for pipeline clamps must be consistent with the flange standard for Dalian marine valves and butterfly valves; Suggest using butt welded flanges, butterfly valve specific flanges,...

More +
Mooring devices and mooring system manufacturing methods for ships

2022-12-26 21:13:03

Mooring refers to the act of securing a vessel to a permanent structure, which will be referred to as a mooring point in the following text. The ship can be fixed to the mooring point to prevent it fr...

More +
What surface treatment method is selected for metal surface treatment of marine castings

2022-11-14 09:31:17

Ship castings, anchors and ship casting cabins are often subject to friction and seawater corrosion, which can easily lead to relatively serious rust. Therefore, it is stipulated that building coating...

More +
Factors Affecting the Quality of Ship Inspection Castings

2022-09-26 10:57:06

There are many factors affecting the quality of ship inspection castings. One is the design technology of iron castings. During design, in addition to determining the geometric shape and size of iron...

More +
Factors affecting dimensional accuracy of marine die castings

2022-08-08 08:59:46

With the continuous development of casting technology and the use of high-precision marine casting molds, the precision level of sand casting has been greatly improved. Therefore, sand casting is stil...

More +
How to repair casting defects in ship inspection?

2022-08-05 17:54:33

The fundamental focus of the method to solve the shrinkage defects of ship inspection castings is "heat balance". The method is:(1) The rapid solidification is carried out at the thick and h...

More +
Causes of hot crack formation in making marine castings

2022-08-04 15:58:57

There are many theoretical and practical reasons for the formation of hot cracks in marine castings, but the fundamental reason is the solidification mode of marine castings and the thermal stress and...

More +
Common problems and solutions of metal marine castings

2022-08-04 15:52:23

There are many factors affecting the quality of metal marine castings, mainly including the following aspects:First, the design process of castings. During the design, in addition to determining the g...

More +
Structural characteristics of double eccentric butterfly valve of Dalian marine valve

2022-08-04 15:40:13

Double eccentric butterfly valve, also known as high-performance butterfly valve, is mainly applicable to the drainage of Dalian marine valve system, such as water plant, power plant, steel plant smel...

More +

Every page shows 10 Article,Share 24 Article home Previous Page

123

2/3

Next Page last

© 2021 Dalian Dafa Casting Co., Ltd　版权所有辽ICP备20003836号-2 Article | Region | Site map | RSS | XML

Main business area：天津秦皇岛辽宁大连上海福建山东广东广西青海

Technical Support：联企时代

Mobile phone QR code
Wechat QR code