China Ge300/C35/GS-45 OEM Fabrication Half Gear for Ball Mill spurs gear

Item Description

Merchandise Parameters

The materials is reduced carbon or alloy steel,this sort of as ZG270-500,ZG42CrMo,ZG35Mn and so on.
 

Materials:ZG25CrNiMo

Steel Grade Chemical Composition %
C Si Mn Cr Ni Mo S P
ZG25CrNiMo .25-.30 .twenty-.forty .70-.90 .40-.70 .forty-.70 .15-.twenty five <=0.571 <=0.571
ZG30CrMo .26-.33 .seventeen-.37 .40-.70 .eighty-1.ten .15-.twenty five <=0.571 <=0.571
ZG35CrMo .32-.40 .17-.37 .forty-.70 .eighty-1.ten .fifteen-.twenty five <=0.571 <=0.571

Standard

 Produce Power

Rp0.2  /MPa

Tensile Strength

Rb / MPa

Elogation

A / %

Reduction of Area

Z/ %

60K ≥414 ≥586 ≥18 ≥35
75K ≥517 ≥655 ≥18 ≥35
80K 585-660 ≥725 ≥18 ≥35

 

Material C Si Mn P S
ZG270-five hundred .32-.40 .20-.52 .45-.ninety ≤0.035 ≤0.035

 

Content C Si Mn P S Cr Mo
ZG42CrMo .38-.forty three .fifteen-.35 .75-1.00 ≤0.035 ≤0.035 0.80-1.ten 0.15-.25

 

Material C Si Mn P S
ZG35Mn .thirty-.40 .60-.80 1.ten-1.forty ≤0.035 ≤0.035

It is up to customers’ requirement.
 

Merchandise Normal
Casting Substance EN 15713/EN 10571/BS 3100/DIN 1681/DIN17205
Casting Tolerance in Blank ISO 8062 CT thirteen
Measurement Tolerance DIN ISO 2768m
NDT ASTM A609 Amount 2 or 3 /EN 12680/ASTM E94 Level 2 or 3
Warmth Therapy Normalizing+Tempering+Quenching
Hardness As Essential

 

Business Profile

Haian CZPT Casting Co.,Ltd. is set up in 2003 in CZPT City.

In 2007,we moved our manufacturing unit to Sunzhuang city and now we can offer bigger steel castings with max. bodyweight 45 tons.

In 2011,we built a new sand mould maiking workshop with a hundred and twenty tons refinining CZPT and the max. bodyweight can be 120 tons.

In 2013,we paid more attenion on the castings for shipbuilding and commenced to supply marine castings for most of domestic renowned shipyards.

From 2013 to 2571,we purchased far more and much more equipment to strengthen our ability from rough machining to concluded machining.

In 2571,we developed another new sand mould generating workshop for the rapid advancement of industry need.

Now we monthly source 6000 tons various castings for diverse consumers of distinct industry,such as cement mill,shipubuilding,petroleum machinery,rolling mill,forging push and so on.

Prodcution Method

one)Sample creating

We have our personal wooden sample creating workshop.
But our business is usually hectic,
we also have close to 10 sub-contractors for sample generating.
They support us for the sample but will be inspected in accordance to our guidelines.
We will file for each and every sample inspection.

2)Silica or chorme sand cores
We have around 80 technicans for sand core generating which is divided into all around 10 groups.
Most of the technicans has a lot more than ten years’ expertise.
Most of the sand main is manufactured by silica sand with frequent sand inside of of it.
The frequent sand will be employed repeatly.
For some critical situation,such as R corner,we will use chorme ore sand.
The outside of the sand main,we will do the painting,melt away and thoroughly clean it.
We will assemble diffrent sand cores jointly and wait for pouring.

3)Melting and Pouring

We always do the melting right after mid-evening for less costly electric charge.
And we generally do pouring in the early early morning.

No. Tools Title Amount(Set)
one 25 tons Electrical Arc Furnace 1
2 50 tons Intermediate Frequency Furnace two
3 120 tons Refining Furnace 1
four one hundred twenty tons VD Furnace 2

Ahead of and after pouring,we will do the chemical compostion take a look at.

4)Cooling

Right after pouring,we will wait around for different time for cooling according to casting’s fat.

Merchandise Weight in blank(Metric Tons) Cooling Time(Hour)
1 <25 48
two >25-forty 72
3 >40-fifty five 96
four >55-seventy two one hundred twenty
5 >72-ninety six a hundred and forty four
6 >96-a hundred and fifteen 168
seven >115 192

We have our encounter and policies for cooling time.
Right after cooling,we will shake the casting out of the metal boxes and clear them.
5)Heat Remedy
Normalizing will be 3 times although tempering is 4 days.
We have around ten sets of heat therapy furnaces.
The largest 1 is 12m*9m*6m.
It is also the biggest size of castings we can make.

After warmth treatment,we will do the mechanical house examination.
Our regular examination block’s dimensions is 230mm*70mm*50mm.
One casting part will min. have 3 pcs take a look at blocks.
We have our screening centre and it is authorized by CNAS. 
six)Draw the line and do the first rough machining
We can do the machining from tough to concluded machining.

seven)NDT soon after tough machining

8)Welding restore
We have wealthy encounter for generating assist rollers and kiln tyres,
then there is no welding for the outside functioning position.
This is our specific technologies.
Every single year we offer close to 400pcs kiln tyres,930pcs assistance roller,one hundred seventy sets gear( in 2 halves).
But for some other castings,if we do the welding repair,
we will do the tempering for pressure aid later.
All of our welders have the SGS certficate.

9)Shot blasting and grinding
We have a robert grinder.
We have a a hundred and twenty tons rotary shot blasting table. 

ten)Final machining
We have a lot of vertical lathes from 2.5m to 10m.

 

Certifications

We get approval from CNAS for our laboratory.
We also have 9 class certification,these kinds of as Stomach muscles,DNV,NK,RINA,KR,CCS,BV and so on.

 

Packaging & Shipping and delivery

We source a good deal of castings for cement mill,rolling mill,shipbuilding and so on.

We can do the packing in accordance to our policies or in accordance to customers’ prerequisite.

 

After Revenue Provider

Normally there is a twelve months high quality warantty.

We do at minimum 3 occasions NDT:soon after tough,semi-concluded and completed machining.

And also the consumer will do the witness throughout or after completed machining.

If there is also any problem when you receive the castings,
remember to send out us photos and thorough defects,
we will negotiate with you and make a payment.

A third get together inspection prior to cargo is welcomed.

 

US $2,500-6,000
/ Ton
|
20 Tons

(Min. Order)

###

Type: Chemical Hardening Sand
Casting Method: Directional Crystallization
Sand Core Type: Sodium Silicate Sand Core
Application: Machinery Parts
Machining: Machining Center
Material: Steel

###

Samples:
US$ 20/kg
1 kg(Min.Order)

|
Request Sample

###

Customization:

###

Steel Grade Chemical Composition %
C Si Mn Cr Ni Mo S P
ZG25CrNiMo 0.25-0.30 0.20-0.40 0.70-0.90 0.40-0.70 0.40-0.70 0.15-0.25 <=0.025 <=0.025
ZG30CrMo 0.26-0.33 0.17-0.37 0.40-0.70 0.80-1.10 0.15-0.25 <=0.025 <=0.025
ZG35CrMo 0.32-0.40 0.17-0.37 0.40-0.70 0.80-1.10 0.15-0.25 <=0.025 <=0.025

###

Standard

 Yield Strength

Rp0.2  /MPa

Tensile Strength

Rb / MPa

Elogation

A / %

Reduction of Area

Z/ %

60K ≥414 ≥586 ≥18 ≥35
75K ≥517 ≥655 ≥18 ≥35
80K 585-660 ≥725 ≥18 ≥35

###

Material C Si Mn P S
ZG270-500 0.32-0.40 0.20-0.52 0.45-0.90 ≤0.035 ≤0.035

###

Material C Si Mn P S Cr Mo
ZG42CrMo 0.38-0.43 0.15-0.35 0.75-1.00 ≤0.035 ≤0.035 0.80-1.10 0.15-0.25

###

Material C Si Mn P S
ZG35Mn 0.30-0.40 0.60-0.80 1.10-1.40 ≤0.035 ≤0.035

###

Item Standard
Casting Material EN 10293/EN 10025/BS 3100/DIN 1681/DIN17205
Casting Tolerance in Blank ISO 8062 CT 13
Size Tolerance DIN ISO 2768m
NDT ASTM A609 Level 2 or 3 /EN 12680/ASTM E94 Level 2 or 3
Heat Treatment Normalizing+Tempering+Quenching
Hardness As Required

###

No. Equipment Name Quantity(Set)
1 25 tons Electrical Arc Furnace 1
2 50 tons Intermediate Frequency Furnace 2
3 120 tons Refining Furnace 1
4 120 tons VD Furnace 2

###

Item Weight in blank(Metric Tons) Cooling Time(Hour)
1 <25 48
2 >25-40 72
3 >40-55 96
4 >55-72 120
5 >72-96 144
6 >96-115 168
7 >115 192
US $2,500-6,000
/ Ton
|
20 Tons

(Min. Order)

###

Type: Chemical Hardening Sand
Casting Method: Directional Crystallization
Sand Core Type: Sodium Silicate Sand Core
Application: Machinery Parts
Machining: Machining Center
Material: Steel

###

Samples:
US$ 20/kg
1 kg(Min.Order)

|
Request Sample

###

Customization:

###

Steel Grade Chemical Composition %
C Si Mn Cr Ni Mo S P
ZG25CrNiMo 0.25-0.30 0.20-0.40 0.70-0.90 0.40-0.70 0.40-0.70 0.15-0.25 <=0.025 <=0.025
ZG30CrMo 0.26-0.33 0.17-0.37 0.40-0.70 0.80-1.10 0.15-0.25 <=0.025 <=0.025
ZG35CrMo 0.32-0.40 0.17-0.37 0.40-0.70 0.80-1.10 0.15-0.25 <=0.025 <=0.025

###

Standard

 Yield Strength

Rp0.2  /MPa

Tensile Strength

Rb / MPa

Elogation

A / %

Reduction of Area

Z/ %

60K ≥414 ≥586 ≥18 ≥35
75K ≥517 ≥655 ≥18 ≥35
80K 585-660 ≥725 ≥18 ≥35

###

Material C Si Mn P S
ZG270-500 0.32-0.40 0.20-0.52 0.45-0.90 ≤0.035 ≤0.035

###

Material C Si Mn P S Cr Mo
ZG42CrMo 0.38-0.43 0.15-0.35 0.75-1.00 ≤0.035 ≤0.035 0.80-1.10 0.15-0.25

###

Material C Si Mn P S
ZG35Mn 0.30-0.40 0.60-0.80 1.10-1.40 ≤0.035 ≤0.035

###

Item Standard
Casting Material EN 10293/EN 10025/BS 3100/DIN 1681/DIN17205
Casting Tolerance in Blank ISO 8062 CT 13
Size Tolerance DIN ISO 2768m
NDT ASTM A609 Level 2 or 3 /EN 12680/ASTM E94 Level 2 or 3
Heat Treatment Normalizing+Tempering+Quenching
Hardness As Required

###

No. Equipment Name Quantity(Set)
1 25 tons Electrical Arc Furnace 1
2 50 tons Intermediate Frequency Furnace 2
3 120 tons Refining Furnace 1
4 120 tons VD Furnace 2

###

Item Weight in blank(Metric Tons) Cooling Time(Hour)
1 <25 48
2 >25-40 72
3 >40-55 96
4 >55-72 120
5 >72-96 144
6 >96-115 168
7 >115 192

Hypoid Bevel Vs Straight Spiral Bevel – What’s the Difference?

Spiral gears come in many different varieties, but there is a fundamental difference between a Hypoid bevel gear and a Straight spiral bevel. This article will describe the differences between the two types of gears and discuss their use. Whether the gears are used in industrial applications or at home, it is vital to understand what each type does and why it is important. Ultimately, your final product will depend on these differences.
Gear

Hypoid bevel gears

In automotive use, hypoid bevel gears are used in the differential, which allows the wheels to rotate at different speeds while maintaining the vehicle’s handling. This gearbox assembly consists of a ring gear and pinion mounted on a carrier with other bevel gears. These gears are also widely used in heavy equipment, auxiliary units, and the aviation industry. Listed below are some common applications of hypoid bevel gears.
For automotive applications, hypoid gears are commonly used in rear axles, especially on large trucks. Their distinctive shape allows the driveshaft to be located deeper in the vehicle, thus lowering the center of gravity and minimizing interior disruption. This design makes the hypoid gearset one of the most efficient types of gearboxes on the market. In addition to their superior efficiency, hypoid gears are very easy to maintain, as their mesh is based on sliding action.
The face-hobbed hypoid gears have a characteristic epicycloidal lead curve along their lengthwise axis. The most common grinding method for hypoid gears is the Semi-Completing process, which uses a cup-shaped grinding wheel to replace the lead curve with a circular arc. However, this method has a significant drawback – it produces non-uniform stock removal. Furthermore, the grinding wheel cannot finish all the surface of the tooth.
The advantages of a hypoid gear over a spiral bevel gear include a higher contact ratio and a higher transmission torque. These gears are primarily used in automobile drive systems, where the ratio of a single pair of hypoid gears is the highest. The hypoid gear can be heat-treated to increase durability and reduce friction, making it an ideal choice for applications where speed and efficiency are critical.
The same technique used in spiral bevel gears can also be used for hypoid bevel gears. This machining technique involves two-cut roughing followed by one-cut finishing. The pitch diameter of hypoid gears is up to 2500 mm. It is possible to combine the roughing and finishing operations using the same cutter, but the two-cut machining process is recommended for hypoid gears.
The advantages of hypoid gearing over spiral bevel gears are primarily based on precision. Using a hypoid gear with only three arc minutes of backlash is more efficient than a spiral bevel gear that requires six arc minutes of backlash. This makes hypoid gears a more viable choice in the motion control market. However, some people may argue that hypoid gears are not practical for automobile assemblies.
Hypoid gears have a unique shape – a cone that has teeth that are not parallel. Their pitch surface consists of two surfaces – a conical surface and a line-contacting surface of revolution. An inscribed cone is a common substitute for the line-contact surface of hypoid bevel gears, and it features point-contacts instead of lines. Developed in the early 1920s, hypoid bevel gears are still used in heavy truck drive trains. As they grow in popularity, they are also seeing increasing use in the industrial power transmission and motion control industries.
Gear

Straight spiral bevel gears

There are many differences between spiral bevel gears and the traditional, non-spiral types. Spiral bevel gears are always crowned and never conjugated, which limits the distribution of contact stress. The helical shape of the bevel gear is also a factor of design, as is its length. The helical shape has a large number of advantages, however. Listed below are a few of them.
Spiral bevel gears are generally available in pitches ranging from 1.5 to 2500 mm. They are highly efficient and are also available in a wide range of tooth and module combinations. Spiral bevel gears are extremely accurate and durable, and have low helix angles. These properties make them excellent for precision applications. However, some gears are not suitable for all applications. Therefore, you should consider the type of bevel gear you need before purchasing.
Compared to helical gears, straight bevel gears are easier to manufacture. The earliest method used to manufacture these gears was the use of a planer with an indexing head. However, with the development of modern manufacturing processes such as the Revacycle and Coniflex systems, manufacturers have been able to produce these gears more efficiently. Some of these gears are used in windup alarm clocks, washing machines, and screwdrivers. However, they are particularly noisy and are not suitable for automobile use.
A straight bevel gear is the most common type of bevel gear, while a spiral bevel gear has concave teeth. This curved design produces a greater amount of torque and axial thrust than a straight bevel gear. Straight teeth can increase the risk of breaking and overheating equipment and are more prone to breakage. Spiral bevel gears are also more durable and last longer than helical gears.
Spiral and hypoid bevel gears are used for applications with high peripheral speeds and require very low friction. They are recommended for applications where noise levels are essential. Hypoid gears are suitable for applications where they can transmit high torque, although the helical-spiral design is less effective for braking. For this reason, spiral bevel gears and hypoids are generally more expensive. If you are planning to buy a new gear, it is important to know which one will be suitable for the application.
Spiral bevel gears are more expensive than standard bevel gears, and their design is more complex than that of the spiral bevel gear. However, they have the advantage of being simpler to manufacture and are less likely to produce excessive noise and vibration. They also have less teeth to grind, which means that they are not as noisy as the spiral bevel gears. The main benefit of this design is their simplicity, as they can be produced in pairs, which saves money and time.
In most applications, spiral bevel gears have advantages over their straight counterparts. They provide more evenly distributed tooth loads and carry more load without surface fatigue. The spiral angle of the teeth also affects thrust loading. It is possible to make a straight spiral bevel gear with two helical axes, but the difference is the amount of thrust that is applied to each individual tooth. In addition to being stronger, the spiral angle provides the same efficiency as the straight spiral gear.
Gear

Hypoid gears

The primary application of hypoid gearboxes is in the automotive industry. They are typically found on the rear axles of passenger cars. The name is derived from the left-hand spiral angle of the pinion and the right-hand spiral angle of the crown. Hypoid gears also benefit from an offset center of gravity, which reduces the interior space of cars. Hypoid gears are also used in heavy trucks and buses, where they can improve fuel efficiency.
The hypoid and spiral bevel gears can be produced by face-hobbing, a process that produces highly accurate and smooth-surfaced parts. This process enables precise flank surfaces and pre-designed ease-off topographies. These processes also enhance the mechanical resistance of the gears by 15 to 20%. Additionally, they can reduce noise and improve mechanical efficiency. In commercial applications, hypoid gears are ideal for ensuring quiet operation.
Conjugated design enables the production of hypoid gearsets with length or profile crowning. Its characteristic makes the gearset insensitive to inaccuracies in the gear housing and load deflections. In addition, crowning allows the manufacturer to adjust the operating displacements to achieve the desired results. These advantages make hypoid gear sets a desirable option for many industries. So, what are the advantages of hypoid gears in spiral gears?
The design of a hypoid gear is similar to that of a conventional bevel gear. Its pitch surfaces are hyperbolic, rather than conical, and the teeth are helical. This configuration also allows the pinion to be larger than an equivalent bevel pinion. The overall design of the hypoid gear allows for large diameter shafts and a large pinion. It can be considered a cross between a bevel gear and a worm drive.
In passenger vehicles, hypoid gears are almost universal. Their smoother operation, increased pinion strength, and reduced weight make them a desirable choice for many vehicle applications. And, a lower vehicle body also lowers the vehicle’s body. These advantages made all major car manufacturers convert to hypoid drive axles. It is worth noting that they are less efficient than their bevel gear counterparts.
The most basic design characteristic of a hypoid gear is that it carries out line contact in the entire area of engagement. In other words, if a pinion and a ring gear rotate with an angular increment, line contact is maintained throughout their entire engagement area. The resulting transmission ratio is equal to the angular increments of the pinion and ring gear. Therefore, hypoid gears are also known as helical gears.

China Ge300/C35/GS-45 OEM Fabrication Half Gear for Ball Mill     spurs gearChina Ge300/C35/GS-45 OEM Fabrication Half Gear for Ball Mill     spurs gear
editor by czh 2023-01-14