Tungsten fishing sinker is the future of fishing tackle because it is dense, heavy weight and eco-friendly. Now let’s know something about one tungsten fishing sinker——bank of reef fishing sinker

Tungsten Bank or reef fishing sinkers are the go-to sinker for most anglers, and are adequate for most situations. Their bowling-pin shape leaves them exposed to deep current, which makes them roll along the bottom at times. If you are fishing from a drifting boat or from quiet surf, bank sinkers are fine.
 
This tungsten bank or reef fishing sinkers are like pyramid and egg sinkers in their usage on rigs, yet the sinker does not feature a brass loop to hold line; rather the sinker's top usually has a lead-molded eye. These tapered, egg-shaped sinkers feature hexagon sides instead of a smooth round surface. The flat sides of the sinker help prevent it from rolling in current and the tapered shape helps prevent it from snagging in rocks.

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Tungsten carbide extrusion-taps’ threaded portion has no cutting edge, relying on plastic deformation in the hole formed by extrusion screw.

Tungsten carbide extrusion-taps’ principle is the use of metal and plastic deformation processing thread of a new thread cutter, thread forming taps are no crumbs extrusion process, especially for the lower strength, good ductility of copper alloy and aluminum, can also be used for low carbon steel, stainless steel and low hardness, tapping the plastic material having a large, long life.

Tungsten carbide extrusion-taps’ threaded surface finish extruded, metal fiber thread is not broken, and the chilled layer formed on the surface layer can improve the strength and wear resistance of the thread. It solves the difficult problem of chip tapping fundamentally, because there was no debris, more conducive to the assembly of the tungsten carbide extrusion-taps’ thread. In electronics, plastics industry wide application.

 

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There are some problems during the tungsten carbide screw-tap’s is tapping, involving the  broken tap when processing or retraction. Look at the followings:

1.Tungsten carbide screw-tap’s selection is incorrect; Choosing the right conditions to be processed by the tungsten carbide screw-tap.

2.Encountering the bottom of the hole during the tungsten carbide screw-tap’s is tapping; Bottom depth examination.

3.Cutting excessive torque; Tapping shorten the length; using wire-tapping spiral groove.

4.Bottom is too small; Select the bottom hole diameter according to the corresponding standards.

 

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Some problems often occur when the tungsten carbide screw-tap’s is tapping, involving the high surface roughness of the inner thread. There are several factors and solutions in the followings:

1.Tungsten carbide screw-tap’s selection is incorrect; Choosing the right conditions to be processed by the tungsten carbide screw-tap.

2.Cutting speed is too high; Reduce cutting speed.

3.Cutting Cone length is not enough; Increase the length of the cutting cone.

4.Chip poor; Choosing the right conditions to be processed by the tungsten carbide screw-tap.

5.Bottom diameter is too small;    Select the bottom hole diameter according to the corresponding standards.

6.Cold welding; Improve the cooling and lubrication conditions.

 

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It often occurs some problems when the tungsten carbide screw-tap’s is tapping, involving the thread is too large. There are several factors in the followings:

1.Tungsten carbide screw-tap’s selection is incorrect;

2.Eccentric Bottom;

3.Nonuniform axial feed;

4.Tungsten carbide screw-tap’s tolerance wrong choice;

5. Cutting speed is too high.

There are the solutions in the followings:
           
1.Choosing the right conditions to be processed by the tap

2.Tapping float switch / improvement Bottom

3.Tapping float switch / improvement tools

4.Reducing the number of tungsten carbide screw-tap’s chip flutes, flute expand capacity chip space;

5.Reduce cutting speed.

 

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Tungsten carbide screw-tap’ successful application depends on the stiffness of the tool holder and control precision feed. For most of the processing methods, these processing conditions for granted. But for tungsten carbide screw-tap’s tapping, these conditions are only just become a reality.

Machine control technology continues to progress, has been able to achieve with the rotation of the spindle synchronization control the feed, which can no longer use the soft tapping head. In addition, the use of thermal loading and hydraulic tool clamping chuck can increase the rigidity of the tool, but also significantly reduce run-out than when using flexible tapping head. Concentric rotation of the tool holder within 3μm. Despite the large clamping force precision telescopic precision (TGHP) chuck performance and less on heat-mounted hydraulic tool chuck, but when applied to tungsten carbide screw-tap’s tapping is also very effective.

 

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The dimensional accuracy of the tungsten carbide screw-tap’s internal thread determines the thread’s assembly and fitting accuracy. When the tungsten carbide internal thread, drill or tap normally driven by an asynchronous machine with a flexible tapping head, a flexible drive tungsten carbide tap tapping head may rotate at a rate close to the required thread feed lead. When these old machines is difficult to precisely coordinate tapping into rotary motion to give, and this synergy is a necessary condition tapped holes.

Therefore, you must use the tapping head is flexible control error range. When tapping, tapping the head of flexible wire tapping will produce radial run-out, limiting the improvement of the accuracy of the Tungsten Carbide Screw-tap’s thread. These factors lead to lower rigidity, and the processing load tap uneven.

 

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Tungsten carbide screw-tap compared with most turning, milling and drilling tools are different, tungsten carbide taps’ cutting edge are relatively weak, and the overall strength is lower. Even in the workpiece material is relatively easy to cut when machining, tungsten carbide screw-tap’s cutting edge is also prone to chipping, leading to tool failure. When the low carbon steel tapping, continuous long chips may clog the chip flute taps, thus limiting the number of Tungsten Carbide Screw-tap applied even more easily than the workpiece material tapping steel (such as aluminum and iron).

Steel and other iron-group material are the most common needs of processing and assembly with the screw holes in the material, therefore, tool manufacturers are sparing no effort to develop cutting edge to prevent chipping and breakage of taps. Given carbide and high speed steel can be compared with the innate superiority, and therefore Tungsten Carbide Screw-tap has become a developmental point.

 

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There are several features of Tungsten Carbide Screw-tap, they are the followings:

Material: Consider the wear resistance and impact resistance under the premise of using ultra-fine particles of tungsten carbide. 

Shape: To improve rigidity, no-neck strengthening tap handle type.

Channel: to improve the wear resistance and good chips, using this matches the number of grooves and groove shapes.

Cutting angle: To increase rigidity and prevent chipping, using a special rake angle.

Accuracy: Given the contraction in the thread, using a modest increase size.

Cut length: consideration of the stability and longevity of the cut portion of the length defined in the five teeth.

Tip diameter: To ensure that the actual length of the cut, using a large tip diameter taps.

 

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Tungsten carbide screw-tap’s tapping process exist chip processing problems, due to the tungsten carbide material itself for it features high carbide hardness, brittleness. Tungsten carbide screw-tap’ unique features and characteristics of the manufacturing process design parameters, the use of advanced coating technology, the basic form of the performance characteristics of Tungsten Carbide Screw-tap.

Tungsten Carbide Screw-tap feature to strengthen and improve the wear resistance of the tip, the use of special grooves and cutting angle, while increasing the number of grooves to reduce the amount of each cutting tooth; to improve the wear resistance and anti-stick properties knife , using the TiAlN surface coating with excellent and stable chemical heat and chemical resistance.

 

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