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Fish Bolt

Fish Bolt

Product performance: Material: Q235 and 45# steel and insulating fish bolts. Manufacturer: Henan great track machinery co. LTD Packing: bagged Uses: The fish bolt is mainly used in the rail laying of metallurgical industry, coking industry and steel industry. Company profile: the company's...

Description

Product performance:


     number

Mechanical properties and physical properties

Performance level

3.6

4.6

4.8

5.6

5.8

6.8

8.81)

9.8

10.9

12.9

d≤163)

d>163)

1

Nominal tensile strengthN/mm2

300

400

500

600

800

800

900

1000

1200

2

Minimum tensile strengthN/mm2

330

400

420

500

520

600

800

830

900

1040

1220

3

Vickers hardness HV F≥98N

min

95

120

130

155

160

190

250

255

290

320

385

max

2206)

250

320

335

360

380

435

4

Brinell hardness HB F=30 D2

min

90

114

124

147

152

181

238

242

276

304

366

max

2096)

238

304

318

342

361

414

5

Rockwell hardness HR

min

HRB

52

67

71

79

82

89

/

/

/

/

/

HRC

/

/

/

/

/

/

22

23

28

32

39

max

HRB

95.06)

99.5

/

/

/

/

/

HRC

/

 

32

34

37

39

44

6

The surface hardness HV 0.3 max

/

7)

7

The yield point N/mm2

nominal

180

240

320

300

400

480

/

/

/

/

/

min

190

240

340

300

420

180

/

/

/

/

/

8

The non-proportional elongation stress is specifiedN/mm2

nominal

/

/

640

640

720

900

1080

min

/

/

640

660

720

940

1100

9

Ensure that stressN/mm2

0.94

0.94

0.91

0.93

0.9

0.92

0.91

0.91

0.90

0.88

0.88

180

225

310

280

380

440

580

600

650

830

970

10

Destroy the torque MB,N.m min

/

According to GB/T3098.13 rules

11

Elongation after break % min

25

22

/

20

/

/

12

12

10

9

8

12

Reduction of area of area % min

/

52

48

48

44

13

Impact absorption workAku,min

 

25

 

30

30

25

20

15

14

Head strength

Shall not be broken

15

The minimum height of the undecarburized layer of thread E

/

1/2H1

2/3H1

3/4H1

16

The maximum depth of the whole decarbonizing layer G,mm

/

0.015

17

Hardness after tempering

/

The mean difference of hardness is not greater than 20HV

18

Surface defects

According to GB/T 5779.1 or GB/T 5779.3

 
Material: 

Q235 and 45# steel and insulating fish bolts.
Manufacturer: 

Henan great track machinery co. LTD
Packing: 

bagged
Uses: 

The fish bolt is mainly used in the rail laying of metallurgical industry, coking industry and steel industry.
Company profile: 

the company's products have passed the ministry of railways testing center quality inspection certification, companies have 82 employees, has senior engineering and technical personnel nine people, the company equipment is advanced, with machining, forging, anticorrosive Dacromet and other large equipment, strong technical force, complete detection means, strictly implement standard made by the ministry of railways to build the products sell well in more than a decade, are sold to the chance of the ministry of railways, railway Labor track maintenance division, the local railway line, large metallurgical enterprises and coal system of mineral bureau private sidings, etc. It has been well received by users for many years. It can also be processed according to customer's special requirements, and the products are widely used in high-speed railway, Bridges, infrastructure, coal mines, and tunnels and so on.
Product specifications: 

models have Φ 14 x 70, 18 x 90 x 75, Φ 16, 20 x 90 Φ, 24 x 135 x 135, Φ 22, 24 x 170 x 145, Φetc., are generally friction presses hot pressing molding, buckle 50 mm long, also has a cold heading forming, multi-purpose in rail joint connection. 

Scope of business: 

main products are: screw spike, elastic, gauge apron, flat washer, spring washer, nut, square, square head wood screw spike, plain bolt, high strength tail, guardrail gusset plate, guard rail track of spindle head, common track lever, insulation rod, ordinary fish plate, fish plate, nylon damper, rubber plate, car stop, switch machine, iron plate, rail pad, railway tools, supporting fasteners and railway highway tunnel with a fence.
Product description: 

the fishtail bolt (fishtail silk) is used to connect the rail joint splint (fishtail plate), and it can be replaced by hexagonal bolt. Bolts, mechanical parts, cylindrical threaded fasteners with nuts. Bolts: a type of fastener consisting of two parts of the head and the screw (a cylinder with an external screw), which should be fitted with the nut to tighten the connection of two parts with a pass hole. This form of connection is called bolted connection. If you screw the nut from the bolt, you can separate the two parts, so the bolt connection is a removable connection.
Features: 

there are many ways to call the bolt, each person's name may be different, some are called screws, some are called bolt nails, some are called standard parts, and some are called fasteners. Although there are so many words, but the meaning is the same, all are bolts. Bolts are common parlance for fasteners. The principle of bolting is to use the physics and mathematical principle of the circular rotation and friction of the object's inclined surface, and gradually tighten the tool of the device. According to the force of the connection: the normal and the hinge hole. Normal main load bearing axial force also can carry the lateral force that does not require high. The bolts of the hinge hole should match the size of the hole for the transverse force.
News:

My company rail buckle accessories, splint fittings, the participation of The Lanzhou to Chongqing railway will be fully open on September 29, 2017
 The K4518 passenger train from Lanzhou to Chongqing was launched on time at 9:09 PM on September 29, and was driven southward from Lanzhou station. The highly anticipated Lanzhou to Chongqing railway officially opened its operation, thus opening the shortest and most convenient transportation corridor from northwest to southwest.
 The Lanzhou to Chongqing railway is connected to lanxin, baolan, lanqing and longhai railway, and the south of baocheng, xiangyu, Chengdu, Chongqing, Yu huai, Shanghai and hanrong railway connects the Yellow River and the Yangtze river, is the national "area", the development of the western region, the Yangtze river economic belt gold intersection lines and three strategic distance from northwest to southwest sea the shortest, the most convenient channel of railway transportation.
 29, Lanzhou station will be put in the first column after the Lanzhou to Chongqing railway international freight trains, with asbestos, onion, soda ash, etc., as the freight trains, the Lanzhou to Chongqing railway have Nanning railway bureau of Jinzhou port to Vietnam, the Philippines and Indonesia.
 Lanzhou-Chongqing railway opened, marks a national backbone network to be more perfect, has added a passenger and cargo between the north-south, connecting northwest and southwest area and convenient, fast, large capacity transportation channel, for countries to promote to carry out the strategy of poverty alleviation and development, speed up the construction of "area" is of great significance. 

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