要使自定义JsonConverter在反序列化时工作，需要继承JsonConverter并在其中实现ReadJson方法并进行相应的逻辑处理。下面是一个示例代码：

public class CustomJsonConverter : JsonConverter
{
    public override bool CanConvert(Type objectType)
    {
        // 判断对象类型是否需要进行序列化操作，需根据实际情况进行判断
        return typeof(MyObject).IsAssignableFrom(objectType);
    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
    {
        // 反序列化的具体实现逻辑
        JObject jsonObj = JObject.Load(reader);
        MyObject newObj = new MyObject();
        newObj.Prop1 = (string)jsonObj["prop1"];
        newObj.Prop2 = (int)jsonObj["prop2"];
        return newObj;
    }

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
    {
        // 序列化的具体实现逻辑
        MyObject obj = (MyObject)value;
        writer.WriteStartObject();
        writer.WritePropertyName("prop1");
        writer.WriteValue(obj.Prop1);
        writer.WritePropertyName("prop2");
        writer.WriteValue(obj.Prop2);
        writer.WriteEndObject();
    }
}

// MyObject为自定义的测试对象
public class MyObject
{
    public string Prop1 { get; set; }
    public int Prop2 { get; set; }
}

在使用时，需要将自定义的JsonConverter添加到JsonSerializerSettings中：

JsonSerializerSettings settings = new JsonSerializerSettings();
settings.Converters.Add(new CustomJsonConverter());
string json = JsonConvert.SerializeObject(obj, settings); // 序列化
MyObject newObj = JsonConvert.DeserializeObject(json, settings); // 反序列化