Titanium Alloy Hexagon Full Thread Bolts

A steel bolt is mainly employed as a bolt which is a typical fastening member. A titanium alloy bolt is employed when a weight reduction or higher strength is required. A titanium alloy bolt requires a higher level of art for its manufacture than a steel bolt does.

The Ti-6% Al-4% V alloy is an alpha-beta alloy which is manufactured by adding an alpha-stabilizing element and a beta-stabilizing element to titanium. The alpha-beta alloy is difficult to work on at room temperature because of its high deformation resistance and low stretch ability. Hot forging performed at a high temperature is, therefore, employed for shaping an alpha-beta alloy by forging, since holding it at a high temperature lowers its deformation resistance and makes it easier to stretch. However, a product of hot forging at a high temperature is seriously affected by the thermal expansion of the alloy. As a result, the forged product is undesirably low in dimensional accuracy. It is necessary to design a product of hot forging with a sufficiently thick cutting allowance for making up its low dimensional accuracy and a waste of the material is, therefore, inevitable.

The hot forging of a titanium material forms scale and oxide layers on its surface as its heavy oxidation takes place at a high temperature. The necessity for the removal of the scale and oxide layers adds to the cost of bolt manufacture. Moreover, hot forging requires heat energy for heating the material to a high temperature. On the other hand, cold forging can make a product close to a final product in shape, since it does not require any heat energy, or cause any lowering in dimensional accuracy that would result from thermal expansion. Accordingly, it has been necessary to explore a titanium material which can be substituted for the alpha-beta alloy and is suitable for cold forging, and there have been proposed pure titanium and a beta titanium alloy as titanium materials to which cold forging is applicable.

The beta titanium alloy contains a by far larger amount of expensive material than the alpha-beta titanium alloy does, and it has a high deformation resistance. The necessity for a large amount of expensive material results in an expensive bolt and its high deformation resistance shortens the life of a die assembly. For these reasons, neither pure titanium nor the beta titanium alloy can be considered as a suitable material for bolts. Therefore, it has been necessary to develop a titanium alloy bolt which can be manufactured by cold forging as a substitute for a bolt of pure titanium or a beta titanium alloy.

The titanium alloy nuts industry has developed rapidly in recent years, and the scope and quantity of exports are also expanding, with broad prospects. Will the titanium alloy nuts not corrode? In addition to its own defects, the corrosion of decorative titanium alloy nutss has a great relationship with the environment, such as air humidity, air temperature, flow speed, flow direction, and the composition and quantity of impurities contained in the air. In the atmosphere and weak corrosive medium, the corrosion rate is less than 0.01mm/year, that is, it is considered to be "completely resistant to corrosion". However, in cl-media such as salt, sulfuric acid and oxalic acid, which are often used in exterior wall cleaning, hydrochloric acid, and porcelain cleaners, they will corrode. In the maintenance process, neutral substances such as water should be used for frequent cleaning to reduce the adhesion of corrosive media. Rust, in addition to avoid sharp objects such as scratches (blade, titanium wire brush) to avoid affecting the appearance and destroying the intergranular structure and corrosion.

Common titanium alloy nuts and titanium products preservation requirements. For the site or warehouse where titanium alloy nuts products are stored, it should be selected in a clean and tidy place with smooth drainage, away from factories and mines with harmful gases or dust. Weeds and all debris should be removed from the ground to maintain the cleanliness of titanium materials. Do not stack with acid, alkali, salt, shimin soil and other materials that are erosive to titanium in the warehouse. Different varieties of titanium materials should be sorted and stacked to avoid confusion and contact with corrosive objects. The warehouse is required to maintain a suitable storage background, pay attention to ventilation in sunny days, and close it to prevent moisture in rainy days. The warehouse should be selected according to the geographical conditions, and the ordinary closed warehouse should be used if it is considered appropriate, that is, the warehouse with the roof and the wall, the door is tightly closed, and the ventilation device is installed.

Baoji Tianruite Metal Co., Ltd. was established in 2011 and is located in Baoji City, Shaanxi Province, the "Titanium Valley of China". It mainly engages in the production, development and sales of non-ferrous metals, titanium alloy materials, titanium products, standard parts, special-shaped parts and other products.