TH156035A - Engine valve - Google Patents

Abstract

Revised 07/22/2015 to provide engine valves conforming to a predetermined special feature. Compared with shock resistance, wear resistance And corrosion resistance at High temperatures, all of which meet or exceed the required rated levels of environmental resistance. Extreme use While the predefined rare metal ratio has been kept to a minimum, the engine valves have been configured to include the engine valve base body, which contributes The stem and head provided are provided at the end of the shank section. Which the engine valve is assembled with The collector's mask, formed by joining the shoulders to surround the head; And the shoulder From the formation of a surface hardening layer on the deposition part Where the accumulated part has also been formed The shoulder binder is made up of Ni-Fe-Cr alloy with W at 8.0 to 40.0% by mass, the total common Mo with W in the range of 20.0 to 40.0% by mass, Fe at 20.0 to 50.0%. By mass, Cr at 12.0 to 36.0 percent by mass, B at 1.0 to 2.5 percent by mass And the equilibrium is Ni and the inevitable impurity, and where the surface hardening layer is formed by flattening practice, nitriding occurs on all valves in order to form layers. Nitrided on the treated surface that forms on the shoulder, thus ensuring the Specially defined, while the ratio of rare earth metals to be minimized. -------------------------------------------------- ------------------------------------ New request updated 11/02/2016 to provide Engine valve corresponding to the pre-determined characteristics about Anti-impact Anti abrasion And anti-corrosion at all high temperatures of which converge or exceed the predetermined level required to withstand the harsh application environment, while further reducing the pre-determined quantity ratio of rare metals to Minimal Engine valves have been built into the configuration to contain the engine valve bases that There is a shank and a head provided at the end of the shank. Which the engine valve is assembled with The reinforcement is formed by welding supports to surround the header. And the support received By forming a hard surface layer on the reinforcement section Where the reinforcement is formed in the material Supported welds containing Ni-Fe-Cr alloys with W at 8.0% to 40.0% by total Mo mass with W in the range of 20.0% to 40.0% by Fe at 20.0% to 50.0% by% Cr mass. 12.0 to 36.0% by mass B at 1.0 to 2.5% by mass and residual Ni and impurity Unavoidable And where the hard surface layer is formed by applying nitro treatment to the All valves to form nitro layers on the milled surfaces forming on supports. By that way, making Sure the specific characteristics that were determined while reducing the content ratio of rare metals Minimum left:

Claims (2)

Disclaimer (all) which will not appear on the advertisement page. : ------ 11/03/2019 ------ (OCR) Page 1 of 1 page. Clause 1. Engine valves, including the body, engine valve base. Which has a shank and head that are arranged at the end of the shank This engine valve includes: a collector formed by welding the shoulder joint to surround the head. And the shoulders obtained by forming a surface hardening layer on the deposition part. Where the deposition was formed with a shoulder bonding material made up of Ni-Fe-Cr alloy with W at 8.0 to 40.0% by mass, all common Mo with W in the range of 20.0 to 40.0 percent by mass, Fe at 20.0 to 50.0 percent by mass, Cr at 12.0 to 36.0 percent by mass, B at 1.0 to 2.5 percent by mass. And the equilibrium part is Ni and the inevitable impurity and Where the layer increases the surface hardness. It has been formed by inducing a nitriding effect on all valves in order to form a nitride layer on the machined finish, which is formed on the seat. 2. Engine valve according to the claim clause. 1 where the elements included in the range of the remaining elements in the shoulder binder Totaled 15.0 percent by mass Or less of the elements selected from between Co, Mn, Cu and Si, 15.0% by mass or less of Co, 5.0% by mass or less of Mn, 5.0% by mass of Cu, 2.0% by Mass or less of Si and 0.5% by mass or less of C ------------ Revised 07/22/2015 1. Engine valves which include the body with the engine valve as the basis. Which has the stem and part The head is arranged at the end of the stem section. This engine valve consists of: Deposition formed by integrating the shoulder joint to the head circumference, and the shoulder is obtained by forming a surface hardening layer on the deposition. Where the deposition was formed with a shoulder bonding material made up of Ni-Fe-Cr alloy with W of 8.0 to 40.0% by mass, the total of Mo with W in the range is 20.0. To 40.0 percent by mass, Fe at 20.0 to 50.0 percent by mass, Cr at 12.0 to 36.0 percent by mass, B at 1.0 to 2.5 percent by mass. And the equilibrium is Ni and impurity The inevitable and Where the layer increases the surface hardness. Was formed by nitriding treatment, the effect on All valves in order to form a nitride layer on a trimmed surface formed on the seat. 2. Engine valve according to claim 1, where the elements included in the range of the remaining elements in Body material Totaled 15.0 percent by mass Or less of the elements selected from between Co, Mo, Cu and Si, 15.0% by mass or less of Co, 5.0% by mass or less of Mn, 5.0% by mass of Cu, 2.0% by Mass or less of Si and 0.5 percent by mass Or less of C --------------------------------------------- -------------- New request updated 11/02/2016 1. Engine Valve, which includes the engine valve base body with the stem and head section provided for the garden. One end of the stem part Which the engine valve is assembled with The reinforcement is formed by the support weld to surround the header. And supported at Obtained by forming a hard surface layer on the reinforcement section. Where the reinforcement was formed in a supporting weld material containing Ni-Fe-Cr alloy with W at 8.0% to 40.0% by total Mo mass with W in the range of 20.0% to 40.0% by mass. Fe at 20.0% to 50.0% by Cr mass at 12.0% to 36.0% by mass B at 1.0% to 2.5% by mass and residual Ni and inevitable impurities and where hard surface layers Gets formed by applying nitro treatment to all valves. To form a nitrile layer on a milled surface formed on supports 2. Engine valves in accordance with claim 1, where elements incorporated within the term of the remaining elements contained in the reinforcing material. Consolidated 15.0% by mass or less of elements selected from between Co, Mn, Cu and Si 15.0% by mass or less of Co 5% by mass or less of 5.0% Mn by mass. Or less of Cu, 2.0% by mass or less of Si and 0.5% by mass or less of C.