TH74016B - Engine valve - Google Patents

Abstract

Modified 07/07/2015 to provide engine valves corresponding to pre-defined specifications. Compared with shock resistance, wear resistance and corrosion resistance at High temperatures, all of which meet or exceed the required level of environmental resistance. intense use While the ratio of pre-defined rare-metals is kept to a minimum, the engine valves are configured to include the engine valve base body, which is The shank and the header are provided at the end of the shank section. which the engine valve consists of a collectible mask formed by welding the shoulder blades to envelop the head; and the shoulder part from the formation of a surface hardening layer on the accumulated mask where the collectible mask is also formed Ni-Fe-Cr alloy-containing shoulder binder containing W at 8.0 to 40.0 percent by mass, Mo at all common to 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 impurity is inevitable and where the surface hardening layer is formed by the flat nitriding effect applied on all valves to form a layer. Nitride on the trimmed surface that forms on the shoulder, thereby ensuring that the appearance Specially formulated while keeping the rare metal content ratio to a minimum. ---------------------------------------------------- ------------------------------------ The new request is updated on 11/02/2016 to provide engine valves corresponding to the characteristics considered before anti-impact anti-abrasion and high-temperature corrosion resistance, all of which meet or exceed pre-determined levels required to withstand harsh use environments, while further reducing the pre-specified rare-metal content ratio to minimal The engine valve is built into the configuration to consist of the engine valve base that There is a shank and a header section provided at one end of the shank section. which the engine valve consists of The reinforcement section is formed by welding the supports to surround the head. and which supports received by forming a hard surface layer on the reinforcement section where the reinforcement is formed in the material A supporting weld containing a Ni-Fe-Cr alloy containing W at 8.0% to 40.0 by mass Mo at all with W in the range of 20.0 to 40.0 by mass Fe at 20.0 to 50.0 by mass Cr at hundred. of 12.0 to 36.0 by mass B at 1.0 to 2.5 per cent by mass and the remaining amount of Ni and impurities which inevitable and where the hard surface layer is formed by nitro-treatment taking effect on All valves to form a nitro layer on the etched surface formed on the supports. By that way, making Be sure to consider the characteristics beforehand while reducing the rare-earth metal content ratio. Least 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.